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Gear driving and control method for battery electric vehicle

A pure electric vehicle, vehicle controller technology, applied in electric vehicles, control drives, control devices, etc., can solve the problems of pure electric vehicle gears that cannot be accurately controlled, low safety, etc.

Inactive Publication Date: 2018-09-11
DONGFENG LIUZHOU MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The problem to be solved by the present invention is to provide a pure electric vehicle gear drive control method to solve the problem that the gear position of the existing pure electric vehicle cannot be accurately controlled and the safety is not high

Method used

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Examples

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Embodiment Construction

[0021] Embodiments of the present invention are described in further detail below:

[0022] The pure electric vehicle gear drive control method includes the following steps:

[0023] A target gear judgment:

[0024] When the vehicle controller detects that the input signal of one gear is 1, and the other signals are all 0, the target gear is analyzed to be the gear with the input signal of 1. If the input signal of two or three gears is 1 or three gears When the bit signal input is 0, the task is the invalid target gear (that is, the fault gear);

[0025] When the requested gear is the same as the target gear, indicating that no shifting is required, the target gear signal value of the vehicle controller remains;

[0026] When the requested gear is not the same as the current target gear, it indicates that a gear shift is required. At this time, the gear shift is judged according to the relevant conditions of the gear shift, and then the target gear is output;

[0027] When...

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PUM

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Abstract

The invention discloses a gear driving and control method for a battery electric vehicle, relating to the technical field of manufacture of battery electric vehicles. The gear driving and control method comprises the following steps: A, determination of a target gear: a vehicle control unit detects that one gear input signal is 1 and other signals are all 0, wherein an analyzed target gear is a gear with the input signal being 1, if two or three gear input signals are 1 or three gear signals are inputted as 0, a task is an invalid target gear; B, gear determination. Compared with the prior art, the problem is resolved that a conventional battery electric vehicle has poor safety because gears cannot be accurately controlled.

Description

technical field [0001] The invention relates to the technical field of pure electric vehicle manufacturing, in particular to a control method for gear driving of pure electric vehicles. Background technique [0002] With the emergence and development of pure electric vehicles, the demand for precise control of the gears of pure electric vehicles is also increasing. However, the existing vehicle controllers for pure electric vehicles do not follow the current conditions of the vehicle, including the upper and lower high voltage. status, current vehicle speed, brake pedal status, gear shift signal and fault status of the whole vehicle, and a solution for accurately judging and entering the current gear and target gear required by the whole vehicle, so that the driver is prone to misuse , Gear failures also often occur, leading to misoperations such as sudden reverse or speeding when driving a pure electric vehicle, resulting in greater safety hazards, and the comfort and safet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/20
CPCB60L15/2054B60L2240/12B60L2240/486Y02T10/72
Inventor 马秋香王善超覃记荣黄国桂李德光郭葵
Owner DONGFENG LIUZHOU MOTOR
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