The present disclosure provides a method and system for offloading a computing task in a vehicle. When a data volume of a computing task in a first controller of a vehicle is greater than a preset maximum data volume, the data volume in the first controller is first sent to a second controller in the vehicle, the second controller calculates offloading information of the computing task in the first controller and sends the offloading information to the first controller, and the first controller performs task offloading based on the offloading information. Therefore, through task offloading between different controllers in the vehicle, the problem of insufficient computing power of the controller can be solved, and the higher real-time performance is achieved compared with cloud computing.
The present disclosure provides a vehicle trajectory-based method for sensing allocated time of signal lights at an intersection and an electronic device. The method includes: designating a direction of an intersection, obtaining vehicle trajectory information of vehicles passing through the intersection in the direction, and extracting allocated time estimation parameters for all vehicles from the vehicle trajectory information; filtering the obtained vehicle trajectory information to remove vehicle trajectory information of a vehicle which does not stop at the intersection; calculating a vehicle arrival rate d and a vehicle departure rate a at the intersection in the direction based on the allocated time estimation parameters; selecting vehicle trajectories meeting a>d, and calculating
The present disclosure provides a vehicle trajectory-based method for sensing allocated time of signal lights at an intersection and an electronic device. The method includes: designating a direction of an intersection, obtaining vehicle trajectory information of vehicles passing through the intersection in the direction, and extracting allocated time estimation parameters for all vehicles from the vehicle trajectory information; filtering the obtained vehicle trajectory information to remove vehicle trajectory information of a vehicle which does not stop at the intersection; calculating a vehicle arrival rate d and a vehicle departure rate a at the intersection in the direction based on the allocated time estimation parameters; selecting vehicle trajectories meeting a>d, and calculating
a
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-
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;
The present disclosure provides a vehicle trajectory-based method for sensing allocated time of signal lights at an intersection and an electronic device. The method includes: designating a direction of an intersection, obtaining vehicle trajectory information of vehicles passing through the intersection in the direction, and extracting allocated time estimation parameters for all vehicles from the vehicle trajectory information; filtering the obtained vehicle trajectory information to remove vehicle trajectory information of a vehicle which does not stop at the intersection; calculating a vehicle arrival rate d and a vehicle departure rate a at the intersection in the direction based on the allocated time estimation parameters; selecting vehicle trajectories meeting a>d, and calculating
a
a
-
d
;
and performing linear regression analysis on discrete values
The present disclosure provides a vehicle trajectory-based method for sensing allocated time of signal lights at an intersection and an electronic device. The method includes: designating a direction of an intersection, obtaining vehicle trajectory information of vehicles passing through the intersection in the direction, and extracting allocated time estimation parameters for all vehicles from the vehicle trajectory information; filtering the obtained vehicle trajectory information to remove vehicle trajectory information of a vehicle which does not stop at the intersection; calculating a vehicle arrival rate d and a vehicle departure rate a at the intersection in the direction based on the allocated time estimation parameters; selecting vehicle trajectories meeting a>d, and calculating
a
a
-
d
;
and performing linear regression analysis on discrete values
(
T
3
,
a
a
-
d
)
The present disclosure provides a vehicle trajectory-based method for sensing allocated time of signal lights at an intersection and an electronic device. The method includes: designating a direction of an intersection, obtaining vehicle trajectory information of vehicles passing through the intersection in the direction, and extracting allocated time estimation parameters for all vehicles from the vehicle trajectory information; filtering the obtained vehicle trajectory information to remove vehicle trajectory information of a vehicle which does not stop at the intersection; calculating a vehicle arrival rate d and a vehicle departure rate a at the intersection in the direction based on the allocated time estimation parameters; selecting vehicle trajectories meeting a>d, and calculating
a
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-
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;
and performing linear regression analysis on discrete values
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of the multiple vehicle trajectories of the vehicles passing through the intersection in the direction to obtain allocated time Tred for a red light at the intersection in the direction. The method makes it more convenient and intelligent to collect allocated time information of the signal lights at the intersection, and facilitates further application of intelligent transportation and vehicle energy-saving and safety optimization.
The present disclosure relates to a data traffic control method and system for an electronic horizon bus, the method including: generating, by an electronic horizon device, a traffic notification message according to bus messages, and sending to a bus gateway; and after the bus gateway receives the traffic notification message, determining, according to a load ratio of a target bus, whether forwarding the bus messages directly to the target bus would result in exceeding a reasonable load of the target bus, performing traffic control and then performing forwarding if exceeding, or performing direct forwarding if not exceeding.
The present disclosure relates to the technical field of electric vehicle charging management, in particular to a control method and system for charging balance of electric vehicle. The method includes: collecting data of each charging station; when a vehicle is connected to or disconnected from the charging station or a charging power of the charging station changes, resetting a pre-allocated power for electricity supply at each phase of a power grid; and switching the charging station to a phase of a corresponding power grid depending on a positive or negative value of the charging power.
Disclosed in the present disclosure is a vehicle energy saving control method, comprising: switching a multi-power switch to a corresponding gear position according to an actual load value and a load threshold; obtaining road information of a corner ahead when the vehicle is driving, wherein the road information comprises a curvature radius; calculating equivalent mass according to the curvature radius, total mass, a speed of the vehicle and a road friction coefficient; determining a predicted gear position according to the sum of the actual load value and the equivalent mass; and switching the multi-power switch to the predicted gear position if the predicted gear position is different from the current gear position. The present disclosure can solve the problem of energy waste caused by the power output mismatch when the vehicle passes the corner.
F16H 61/02 - Control functions within change-speed- or reversing-gearings for conveying rotary motion characterised by the signals used
F16H 59/44 - Inputs being a function of speed dependent on machine speed
F16H 59/52 - Inputs being a function of the status of the machine, e.g. position of doors or safety belts dependent on the weight of the machine, e.g. change in weight resulting from passengers boarding a bus
F16H 59/66 - Road conditions, e.g. slope, slippery
F16H 59/70 - Inputs being a function of gearing status dependent on the ratio established
6.
ELECTRIC VEHICLE ENERGY MANAGEMENT METHOD BASED ON BEND PREDICTION, TERMINAL DEVICE, AND STORAGE MEDIUM
The present disclosure relates to an electric vehicle energy management method based on bend prediction, a terminal device, and a storage medium. The method includes the following steps: S1. counting an average acceleration av of vehicle decelerations; S2. acquiring bend information of a road ahead by an e-horizon system; S3. predicting energy recovery amount during cornering based on the bend information and a maximum cornering speed of a vehicle; and S4. adjusting a logic threshold value for current driving based on the predicted energy recovery amount. With the method of the present disclosure, a supercapacitor can output more energy in advance based on energy likely to be recovered during cornering ahead, so as to free up energy recovery space and to recover energy during cornering, which can reduce power output of a battery, ensure energy recovery, and play a positive role in loss reduction and energy-saving control.
The present disclosure discloses a dynamic control system and method for power of a vehicle. The system includes: an electronic horizon system, configured to obtain slope information and to send the slope information to a power controller; an accelerator pedal, configured to output accelerator pedal depth information to the power controller; and the power controller, configured to fit a power output curve for entering a next slope, and to control an engine or a motor of the vehicle to output a torque according to the power output curve. The present disclosure can generate the power output curve for a next road segment in real time.
B60W 20/12 - Controlling the power contribution of each of the prime movers to meet required power demand using control strategies taking into account route information
B60W 10/06 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
B60W 10/08 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
Disclosed in the present disclosure are a lift axle control method for a vehicle and a lift axle control system for a vehicle, wherein the method comprises the following steps: step 1) acquiring a load M of the vehicle; step 2) judging whether it needs to lower the lift axle according to the load, and if so, controlling the vehicle to lower the lift axle, and entering into step 3); otherwise, returning to step 1); step 3) calculating an optimal position of lifting the lift axle, controlling the vehicle to lift the lift axle at the optimal position, and entering into step 4); step 4) calculating an optimal position to lower the lift axle, controlling the vehicle to lower the lift axle at the optimal position, and then returning to step 3). The method of the present disclosure can reduce the damage to the road surface and achieve the economy of fuel consumption during running of the vehicle.
B62D 61/12 - Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with variable number of ground-engaging wheels, e.g. with some wheels arranged higher than others, or with retractable wheels
B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
9.
METHOD FOR CONTROLLING FOLLOWING DISTANCE BASED ON TERRAINS, TERMINAL DEVICE, AND STORAGE MEDIUM
The present disclosure relates to a method for controlling a following distance based on terrains, a terminal device, and a storage medium. The method includes the following steps: S1. dynamically acquiring a slope θ of a current driving road; S2. calculating a dynamic following distance d based on the slope θ; S3. determining whether d is within an acceptable following distance range [d1, d2], if d is within the range, controlling the following distance of a vehicle to be d, otherwise proceeding to step S4; and S4. if d is smaller than d1, controlling the following distance of the vehicle to be d1; and if d is greater than d2, controlling the following distance to be d2. With the method of the present disclosure, the following distance can be automatically and dynamically adjusted based on the terrains to achieve the consistency of energy saving and safety.
The present disclosure relates to a power battery pack equalization method based on terrain prediction. The method includes: S1. during running of a vehicle, acquiring information of a road ahead of the vehicle; and S2. classifying the road information, setting a power prediction type based on a road information type, and switching a battery pack equalization mode correspondingly. For a low power and high energy recovery type, charging equalization is performed on a battery pack, and single batteries with low power capacity are charged through a supercapacitor; and for a road with high power and high energy consumption, discharging equalization is performed on the battery pack, and the supercapacitor is charged through single batteries with high power capacity. Thanks to the present disclosure, energy distribution and equalization of the entire vehicle can be more reasonable, the batteries are protected, and better economical efficiency is achieved.
The present disclosure discloses a terrain based dynamic gear shift control method and system for a vehicle. The method includes: during running of a vehicle, obtaining a current terrain; according to the current terrain, the economic gear shift strategy, and the dynamic gear shift strategy, generating a current gear shift strategy curve; and according to the current gear shift strategy curve, controlling a transmission to perform gear shift. The present disclosure can make the vehicle have wider adaptability, and achieve a better dynamic balance between economy and dynamic performance.
Disclosed are a control method for a hydraulic retarder, and a control system. The method includes: acquiring a slope of a downhill road segment ahead of a vehicle; determining whether an absolute value of the slope is greater than an absolute value of a slope for which a braking force is not required; if so, predicting a required braking force and oil amount for the vehicle at a steady speed; predicting, according to the oil amount, oil filling time and a distance between the vehicle and an origin of the above road segment at the start time of oil filling of the hydraulic retarder; in the case that the actual distance of the vehicle is equal to a predicted distance, starting oil filling; and upon the vehicle reaching the origin of the road segment, starting braking. The present disclosure can lower wear of brake pads and reduce vehicle running costs.
B60T 10/00 - Control or regulation for continuous braking making use of fluid or powdered medium, e.g. for use when descending a long slope
B60K 31/06 - Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including fluid pressure actuated servomechanism
13.
DPF regeneration trigger control method and terminal device, and storage medium
The disclosure relates to a DPF regeneration trigger control method and terminal device, and a storage medium. The method includes: setting an active trigger differential pressure and an initial trigger differential pressure; and controlling, according to a relationship between a differential pressure of the DPF collected in real time during a vehicle travelling process and the active trigger differential pressure and a relationship between the differential pressure of the DPF and the initial trigger differential pressure, the vehicle to actively start DPF regeneration, to trigger passive DPF regeneration, or not to start DPF regeneration; otherwise, controlling the vehicle to actively start DPF regeneration. According to the disclosure, by setting a flexible trigger interval, there is a tolerance interval of differential pressure, so that fuel consumption of the diesel engine can be reduced, and the economy is improved.
F01N 9/00 - Electrical control of exhaust gas treating apparatus
F01N 3/023 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
F01N 11/00 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus
14.
Power control method and terminal device for hydraulic hybrid vehicle, and storage medium
The present invention relates to a power control method and terminal device for a hydraulic hybrid vehicle, and a storage medium. The method includes: S1: predicting, according to environmental information of a road ahead, recoverable energy in the road ahead; S2: calculating, according to the predicted recoverable energy, a critical pressure required by a hydraulic accumulator to recover the recoverable energy; and S3: determining whether a current pressure of the hydraulic accumulator is greater than the critical pressure, and if so, reducing fuel output power of an engine and controlling the hydraulic accumulator to release energy such that the current pressure of the hydraulic accumulator is less than or equal to the critical pressure. According to the present invention, when it is predicted that there is a high probability of energy recovery ahead, the energy stored in the hydraulic accumulator is used up in advance, so that the hydraulic accumulator has enough space to recover energy when the energy recovery occurs in future. This can make full use of the characteristic of the hydraulic accumulator of being suitable for frequent storage and release of energy, thereby achieving the economy of energy consumption of the whole vehicle.
B60W 10/06 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
B60W 10/24 - Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
F02D 41/38 - Controlling fuel injection of the high pressure type
15.
Predictive EGR control method and terminal device, and storage medium
The disclosure relates to a predictive EGR control method and terminal device, and a storage medium. The method includes: calculating, if there is a slowdown section ahead of a vehicle, an engine output torque to be reduced for travelling from a current position to a start position of the slowdown section and/or an engine output torque to be increased for travelling from the start position of the slowdown section to an end position of the slowdown section, and thereby adjusting an EGR rate according to the engine output torque to be reduced or increased. Before the vehicle running at a high load enters the slowdown section, an EGR valve can be opened in advance to increase the EGR rate, thereby reducing harmful gas emissions.
The present invention relates to an energy management method and terminal device for an electric vehicle, and a storage medium. The method includes: calculating a predictive dynamic threshold in real time according to electronic horizon data, and setting an energy output/recovery proportion of a battery and a supercapacitor of the electric vehicle according to the predictive dynamic threshold. According to the present invention, the road ahead is predicted based on the electronic horizon system, and the predictive dynamic logic threshold is generated according to the electronic horizon information, thereby overcoming the defect that the conventional fixed logic threshold is incapable of predictive optimal energy management. A corresponding energy management strategy is set for predictive energy management according to the predictive dynamic logic threshold, thereby playing a positive role in reducing energy consumption of the electric vehicle, preventing battery loss, improving vehicle economy, etc.
B60L 58/12 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
17.
Dual-speed final drive control method and terminal device, and storage medium
The disclosure relates to a dual-speed final drive control method and terminal device, and a storage medium. The method includes: when an absolute value of a gradient value of a road ahead is greater than a gradient threshold, determining, according to the gradient value, whether the road ahead is an uphill section or a downhill section, thereby controlling all gears of a transmission to correspond to a higher final drive ratio or a lower final drive ratio in the dual-speed final drive. The disclosure can make use of the dual-speed-ratio final drive to the greatest extent to improve the economy in energy consumption of the entire vehicle.
Provided herein are an FCEV energy management method and system. The method includes: acquiring front road information and front road condition information of a vehicle; predicting a front required power mode according to the front road information and the front road condition information; and adjusting an SOC value of an FCEV auxiliary electric energy module on the basis of the predicted front required power mode. The SOC value of the FCEV auxiliary electric energy module can be adjusted according to the front road information and the front road condition information of the vehicle, thereby keeping the SOC value of the FCEV auxiliary electric energy module at a reasonable level, thus loads of a fuel cell are balanced, and the fuel cell can keep slow change of power output.
B60L 58/40 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for controlling a combination of batteries and fuel cells
B60L 50/75 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using propulsion power supplied by both fuel cells and batteries
B60L 58/12 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
H01M 16/00 - Structural combinations of different types of electrochemical generators
19.
Adaptive front-lighting system control method and terminal device, and storage medium
The disclosure relates to an adaptive front-lighting system control method and terminal device, and a storage medium. The method includes: calculating, based on gradient values of different gradient points in electronic horizon data ahead, a to-be-adjusted vertical adjustment angle of the adaptive front-lighting system, and adjusting an illumination angle of the adaptive front-lighting system with the vertical adjustment angle. The disclosure provides gradient information of the road out of view for control of the adaptive front-lighting system, optimizes the control of vertical angle, and can avoid the blind spot of illumination caused by the change in the gradient in simple angle control, thus being more suitable for the control of the adaptive front-lighting system in a gradient terrain.
B60Q 1/08 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically
20.
CHARGING CONTROL METHOD AND SYSTEM FOR RANGE EXTEND ELECTRIC VEHICLE, AND ELECTRIC VEHICLE
Disclosed are a charging control method and system for a range extend electric vehicle, and the electric vehicle. The control method includes: presetting a first threshold value and a second threshold value and executing the following steps: when the electric quantity of a battery is lower than the second threshold value, performing forced charging on the battery; when the electric quantity of the battery is lower than the first threshold value and higher than the second threshold value, proceeding to a subsequent step to determine whether Pv+Pb1>Pu is met, Pv, Pb1 and Pu respectively representing current vehicle driving required power, minimum required charging power of the battery and maximum power of a high efficiency running range of an engine; if not, determining the time as an optimal charging time, controlling the engine to increase the power to Pu, and charging the battery with a power of Pu−Pv; and if so, skipping performing charging, and predicting an optimal charging time for charging according to a terrain condition or road environment ahead. On the basis of the above charging control method, the optimal charging time of the range extend electric vehicle can be predicted, ensuring that the engine runs in a high efficiency power range while charging the battery, and achieving better economic efficiency.
B60W 20/13 - Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limitsControlling the power contribution of each of the prime movers to meet required power demand in order to prevent overcharging or battery depletion
B60W 10/06 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
B60W 50/00 - Details of control systems for road vehicle drive control not related to the control of a particular sub-unit
B60L 50/61 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
21.
OPTIMIZED ENERGY ALLOCATION METHOD AND SYSTEM FOR ELECTRIC VEHICLE AND ELECTRIC VEHICLE
The present invention discloses an optimized energy allocation method and system for an electric vehicle and an electric vehicle. The method includes step (1) detecting remaining charge levels of a first super-capacitor and a second super-capacitor, determining whether the remaining charge levels of the first super-capacitor and the second super-capacitor are greater than a preset threshold value, and if so, proceeding to step (2); step (2) acquiring a topographic map of a road ahead by means of an electric horizon system, predicting whether there is a continuous slope ahead, and if so, proceeding to step (3); and step (3) according to a continuous slope value ahead, predicting a braking force allocation proportion when carrying out braking ahead, allocating current power outputs of the first super-capacitor and the second super-capacitor in advance according to the braking force allocation proportion, and returning to step (1). By means of the present invention, the total capacity of the super-capacitors is increased, and the recovered braking or sliding energy is increased.
B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
B60L 50/40 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
B60L 50/50 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
B60T 8/24 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle inclination or change of direction, e.g. negotiating bends
22.
METHOD FOR PREDICTING ENERGY CONSUMPTION-RECOVERY RATIO OF NEW ENERGY VEHICLE, AND ENERGY SAVING CONTROL METHOD AND SYSTEM FOR NEW ENERGY VEHICLE
Provided are a method for predicting an energy consumption-recovery ratio of a new energy vehicle, and an energy saving control method and system for the new energy vehicle. The method includes: (1) acquiring, by means of an electronic horizon system, geographic information data of a position that is K meters ahead on a road from a current position of the new energy vehicle; (2) compiling statistics on speed information during the process of the new energy vehicle traveling S meters to reach the current position, values of K and S being the same; and (3) taking the geographic information data and the speed information as input vectors, inputting the same into a trained artificial neural network, and outputting a predicted energy consumption-recovery ratio. The present disclosure can optimize energy control over the vehicle, improve the utilization rate of electrical energy, and increase the traveling mileage.
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
The present disclosure relates to a method for screening gradient points, and a method and a system for calculating a gradient. The method for screening gradient points includes: screening the gradient points whose first-order derivatives relative to road offset values are greater than or equal to a derivative threshold, as first-level gradient points; and screening second-level gradient points according to a difference between the road offset values corresponding to two adjacent first-level gradient points, as discrete gradient points. In the method for calculating a gradient, the gradient values of the gradient points between adjacent discrete gradient points are recalculated according to the gradient value of each discrete gradient point and the corresponding road offset value.
G01C 21/28 - NavigationNavigational instruments not provided for in groups specially adapted for navigation in a road network with correlation of data from several navigational instruments
24.
METHOD, TERMINAL DEVICE AND STORAGE MEDIUM FOR COMPUTING VEHICLE MASS
The present disclosure relates to a method for computing a vehicle mass, a terminal device and a storage medium. The method includes: collecting engine torque data and electronic horizon data; determining whether two sampling points whose gradient value difference is greater than a gradient value difference threshold exist; determining whether the two sampling points are on a same road; determining whether the road between the two sampling points is a straight road; determining whether a difference between engine torques is greater than a torque difference threshold; calculating the vehicle mass according to the engine torques and gradient values corresponding to the two sampling points.
G01G 19/03 - Weighing apparatus or methods adapted for special purposes not provided for in groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing during motion
25.
METHOD AND SYSTEM FOR CONSTRUCTING ELECTRONIC HORIZON
The present disclosure relates to a method and a system for constructing an electronic horizon. The method includes: sending, by at least one roadside unit, its corresponding location information and direction information to a data processing center as road information; constructing, by the data processing center, forward electronic horizon data according to received road information, set search distance and electronic map data; and sending to the roadside unit; receiving and storing, by the roadside unit, the forward electronic horizon data sent by the data processing center; sending, by an on-board unit, a data acquisition request to the roadside unit; sending, by the roadside unit, the forward electronic horizon data corresponding to the direction information in the data acquisition request to the on-board unit; constructing, by the on-board unit, a forward electronic horizon representation according to received forward electronic horizon data. The present disclosure completely avoids using the on-board electronic map in the vehicle's electronic control unit to execute complex search algorithms in the process of constructing the forward electronic horizon representation, and has the advantages of low cost, easy use and high real-time performance.
A control circuit and method for a fuel-saving multi-state switch is provided. The control circuit comprises a vehicle body ECU, a fuel-saving control unit, and a PWM voltage regulating unit. The fuel-saving control unit is connected to the vehicle body ECU through a CAN bus to collect CAN signals. The fuel-saving control unit determines a switch gear required by a current vehicle according to the CAN signals and outputs a PWM pulse signal having a corresponding duty cycle. The PWM voltage regulating unit is connected to the fuel-saving control unit to receive the PWM pulse signal. The PWM voltage regulating unit outputs a voltage value corresponding to the switch gear according to the PWM pulse signal. The vehicle body ECU is connected to the PWM voltage regulating unit to receive the voltage value, so as to control a speed and torque of an engine according to the voltage value.
H02M 3/07 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode
patents