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An electric vehicle speed limit anti-shake control system and control method thereof

A technology of control system and control method, applied in electric vehicles, control drives, control devices, etc., can solve the problems of inability to output braking torque, large torque influence, large torque fluctuation, etc., to avoid vehicle jitter and small torque fluctuation. , speed limit stable and reliable effect

Active Publication Date: 2022-06-24
SUZHOU KAIBO YIKONG DRIVE TECH CO LTD
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0006] According to the deviation between the current vehicle speed and the ideal vehicle speed, the target torque of the motor is controlled linearly down. When the torque fluctuates greatly, it is prone to speed limit jitter, and the brake torque cannot be output when the accelerator is downhill at high speed, and it is prone to overspeed faults

Method used

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  • An electric vehicle speed limit anti-shake control system and control method thereof
  • An electric vehicle speed limit anti-shake control system and control method thereof
  • An electric vehicle speed limit anti-shake control system and control method thereof

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Embodiment Construction

[0101] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0102] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end" and "the other end" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the descript...

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Abstract

The invention provides an electric vehicle speed limit anti-shake control system and its control method, which is designed for the speed limit jitter and overspeed conditions that occur during the operation of the electric bus, and avoids the speed limit jitter and motors that are prone to occur when going downhill at high speed Overspeed failure, to ensure the stability of vehicle speed limit and high-speed driving safety.

Description

technical field [0001] The invention relates to an electric vehicle control system and a control method thereof, in particular to an electric vehicle speed limit and anti-shake control system and a control method thereof. Background technique [0002] The current control methods of the electric vehicle speed limit control system mainly include two modes: [0003] 1) PID control: [0004] According to the error between the current vehicle speed and the ideal vehicle speed, the proportional, integral and differential control is used to calculate the target torque control amount of the motor. This control method has poor generality and needs to adjust the control parameters according to the vehicle model and the target vehicle speed, and the debugging time of this control method It takes debugging experience and a lot of tests to find the best PID control parameters. Once the parameter selection is unreasonable, the vehicle is prone to speed limit jitter. [0005] 2) Proporti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L15/20B60L3/00B60L3/08
CPCB60L15/20B60L3/0046B60L3/08B60L2240/423B60L2240/48Y02T10/72
Inventor 郝庆军张亚新温延兵王琳陆中华曹铮
Owner SUZHOU KAIBO YIKONG DRIVE TECH CO LTD
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