Speed-limiting anti-shake control system and method for electric vehicle

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

Active Publication Date: 2021-06-18
SUZHOU KAIBO YIKONG DRIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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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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  • Speed-limiting anti-shake control system and method for electric vehicle
  • Speed-limiting anti-shake control system and method for electric vehicle
  • Speed-limiting anti-shake control system and method for electric vehicle

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Embodiment Construction

[0101] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to 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", "both ends", "one end", "another end" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying tha...

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Abstract

The invention provides a speed-limiting anti-shake control system and method for an electric vehicle. The control system and the control method are designed for speed-limiting shake and overspeed conditions occurring in the vehicle running process of an electric bus, avoid the fault that a motor is prone to overspeed during speed-limiting shake and high-speed downhill, and ensure the vehicle speed-limiting stability 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 anti-shake control system and a control method thereof. Background technique [0002] The current control mode of the electric vehicle speed limit control system mainly includes two modes: [0003] 1) PID control: [0004] According to the error between the current vehicle speed and the ideal vehicle speed, the target torque control amount of the motor is calculated by using proportional, integral, and differential control. This control method is not universal, and the control parameters need to be adjusted according to the vehicle model and target vehicle speed, and the debugging time of this control method Long, it needs debugging experience and a lot of tests to find the best PID control parameters. Once the parameters are unreasonable, the vehicle is prone to speed limit vibration. [0005] 2) Proportional tor...

Claims

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Application Information

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Patent Type & Authority Applications(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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