Control method for anti-slip slope and slip slope distance of micro electric vehicle

A technology of electric vehicles and control methods, which is applied in the direction of electric vehicles, control drives, control devices, etc., can solve problems such as misentry, and achieve the effects of reducing slope distance, reducing risks, and speeding up adjustment responses

Active Publication Date: 2019-02-15
SHANGHAI DAJUN TECH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a control method for anti-slope and slope distance of miniature electric vehicles. Slope distance, and at the same time prevent vehicles from accidentally entering the anti-slope control on flat ground, effectively improving safety performance and driving experience

Method used

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  • Control method for anti-slip slope and slip slope distance of micro electric vehicle
  • Control method for anti-slip slope and slip slope distance of micro electric vehicle

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Embodiment Construction

[0017] Example figure 1 and figure 2 Shown, the control method of miniature electric vehicle anti-slipping slope and sliding slope distance of the present invention comprises the steps:

[0018] Step 1. When the vehicle is driving uphill, the vehicle controller collects gear position signals, accelerator pedal signals, brake pedal signals, motor speed, motor rotation direction, target torque, anti-slope enable command, and hill start enable command;

[0019] Step 2. The motor controller judges whether the whole vehicle enters the anti-slip function through the gear position signal, the anti-slip enable command, the motor speed signal, the rotation direction and the hill start enable command. If the motor control system meets the requirements for entering the anti-slip If the slope is enabled, the motor control system will quickly and smoothly transition from the torque mode to the parking mode, otherwise it will exit the anti-slope enable;

[0020] Step 3. When the anti-slo...

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Abstract

The invention discloses a control method for an anti-slip slope slope and a slip slope distance of a micro electric vehicle. The method collects a gear position signal, an accelerator pedal signal, abrake pedal signal, a motor rotating speed, a motor rotation direction, a target torque, an anti-slope enable command and aslop start enable commandby a vehicle controller; a motor controller judges whether a vehicle enters the anti-slip slope enable through the collected information,if a motor control system satisfies a entry anti-slope enable condition, the motor control system quickly transitions from a torque mode to a park mode, otherwise the system exits anti-slip slope enable; segmented PI control is used for ensuring smooth transition, increasing speed feedforward control, acceleratingspeed adjustment response, reducing the slip slope distance, and increasing aslop start enable sign, which enables the vehicle to distinguish between a flat land and the slop, it is verified that a condition is met, the anti-slip slope enable is accurately and smoothly entered,the vehicle does not shake or tremble,the slip slop distance is shortened, and the risk that the accidental entry into the anti-slip slope in the flat land is reduced.

Description

technical field [0001] The invention relates to the technical field of motor control, in particular to a method for controlling the slope prevention and slope distance of a micro electric vehicle. Background technique [0002] With the increasing challenges of global energy shortage, environmental pollution and driving safety, the global automobile industry is developing in the direction of electrification, intelligence, networking and sharing. Especially in China, the development of new energy automobile industry has risen to the national level Strategy, the scale of the new energy vehicle market is rapidly expanding, and the industry has entered a critical stage of transition from the introduction period to the growth period. How to maintain the healthy and sustainable development of the new energy vehicle industry and realize the coordinated development of new energy vehicles and the future transportation society is a major problem that needs to be solved urgently. In ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/20
CPCB60L15/2018B60L2240/42B60L2240/423B60L2240/10Y02T10/72
Inventor 肖峰蒋正友杜朝辉
Owner SHANGHAI DAJUN TECH
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