Hill starting auxiliary control method for vehicle directly driven by motor

A hill start and auxiliary control technology, applied in the field of vehicle control, can solve the problem of vehicles sliding downhill

Inactive Publication Date: 2016-12-14
澳特卡新能源科技(上海)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] If the vehicle does not have an anti-slope locking mechanism, when the vehicle is driven by the motor, when the vehicle is on an uphill climb with forward gear or downhill with reverse

Method used

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  • Hill starting auxiliary control method for vehicle directly driven by motor

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Embodiment Construction

[0034] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0035] A method for assisting control of a vehicle directly driven by a motor on a slope start, comprising the following steps:

[0036] Step 1, the vehicle controller collects brake pedal position signals, gear position signals, motor steering signals, motor speed signals, and motor torque signals through hard wire and CAN bus communication;

[0037] Step 2: The vehicle controller reads the position information of the brake pedal according to the hard-wired signal, and uses a hysteresis comparator to determine the state of the pedal, whether the brake pedal is depressed or the brake pedal is released;

[0038] Step 3, determine whether the vehicle is slipping;

[0039] Step 4, when the following four conditions are met at the same time, it is considered that the hill start assist control function is enabled; condition 1: the vehicle gea...

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PUM

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Abstract

The invention discloses a hill starting auxiliary control method for a vehicle directly driven by a motor. Serious hill slipping of the vehicle is avoided by superposition of an anti-slope torque without extra mechanical structures or sensors, hill starting auxiliary control of the vehicle can be realized according to an integral vehicle control strategy, and easiness in implementation is achieved. In addition, PI torque control is well adaptive to different gradients, quickness in torque response and high adaptability are realized, hill slipping risks are effectively reduced, and safety in hill starting is greatly improved.

Description

technical field [0001] The invention relates to the field of complete vehicle control, in particular to an auxiliary control method for a motor directly driving a vehicle to start on a hill. Background technique [0002] At present, with the continuous development of new energy vehicles, the share of pure electric vehicles and extended-range hybrid vehicles in the automotive market continues to expand. Most of them use the motor as the only power output, and the motor is directly connected to the main reducer through the transmission shaft. The vehicle is running, so the structure of the whole vehicle is different from that of an electric vehicle with a reducer. For this type of vehicle, according to its structural characteristics, new solutions and strategies are required when starting on a hill. [0003] If the vehicle does not have an anti-slope locking mechanism, when the vehicle is driven by the motor, when the vehicle is on an uphill climb with forward gear or downhil...

Claims

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Application Information

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IPC IPC(8): B60W10/08B60W30/18B60W40/00B60L15/28
CPCB60L15/2081B60L15/28B60L2240/423B60L2260/44B60W10/08B60W30/18009B60W40/00B60W2510/08B60W2510/081B60W2510/083B60W2540/12B60W2540/16B60W2710/083Y02T10/72Y02T90/16
Inventor 张臻孙永正陶冬生马网俊高晓杰
Owner 澳特卡新能源科技(上海)有限公司
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