Single-motor and four-wheel-drive electric vehicle starting and running control method

An electric vehicle, four-wheel drive technology, applied in electric vehicles, control drives, control devices, etc., can solve the problems of weak acceleration ability and off-road ability of vehicles, low vehicle handling safety, high vehicle weight and cost, and achieve enhanced The effect of acceleration and off-road capability, reduced vehicle weight and cost, good economy and handling stability

Active Publication Date: 2018-11-09
CH AUTO TECH CORP CO LTD
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Problems solved by technology

However, existing electric vehicles usually adopt a single-axle dual-wheel drive mode. The main power of the vehicle is mainly concentrated on the front or rear wheels as the driving wheels, which can easily cause uneven force on each wheel and affect the acceleration and off-road capabilities of the vehicle. Weaker, the safety of vehicle h

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  • Single-motor and four-wheel-drive electric vehicle starting and running control method
  • Single-motor and four-wheel-drive electric vehicle starting and running control method

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[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention, but the cited embodiments are not intended to limit the present invention.

[0030] See Figure 1-Figure 2 , A single-motor four-wheel drive electric vehicle starting and driving control method. The electric vehicle includes a vehicle controller 11 and a drive motor 6. One end of the drive motor 6 is connected to the front drive reducer 4 through a front clutch 5, The other end is connected through the rear clutch 7 and the rear drive reducer 8, the front drive reducer 4 and the front wheel 2 are connected through the corresponding drive shaft 3, and the rear drive reducer 8 and the rear wheel 9 are connected through the corresponding drive shaft 3. , The front wheel 2 and the rear wheel 9 are both provided with a wheel clutch 1; the control method includes t...

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Abstract

The invention discloses a single-motor and four-wheel-drive electric vehicle starting and running control method. An electric vehicle comprises a vehicle control unit and a driving motor; one end of the driving motor is connected with a front drive speed reducer through a front clutch; the other end of the driving motor is connected with a rear drive speed reducer through rear front clutch; the front drive speed reducer is connected with front wheels; and the rear drive speed reducer is connected with rear wheels. The single-motor and four-wheel-drive electric vehicle starting and running control method comprises the following steps that the vehicle control unit controls the starting of the electric vehicle according to the actual load situation of the electric vehicle; and after starting,the vehicle control unit controls running modes of the electric vehicle according to the actual load situation, wherein the running modes comprise a front wheel and rear wheel simultaneous driving mode, a front wheel driving mode and a rear wheel driving mode. According to the single-motor and four-wheel-drive electric vehicle starting and running control method, the optimized control of vehiclepower can be effectively reduced, the total weight and cost of the vehicle are greatly reduced, enough power can be preferably transmitted to road surfaces, and the accelerating and off-road capability of the vehicle is improved.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a method for controlling the starting and running of an electric vehicle driven by a single motor with four wheels. Background technique [0002] An electric vehicle is a vehicle powered by an on-board power supply and driven by a motor to drive the wheels. An electric vehicle is an environmentally friendly vehicle. It uses electricity instead of petroleum as its main power source. It has the characteristics of low carbon emissions and environmental friendliness. It has the advantages of traditional internal combustion engines in alleviating the energy crisis, making full use of renewable energy, and reducing greenhouse gas emissions. The incomparable advantages of cars. However, existing electric vehicles usually adopt a single-axle dual-wheel drive mode. The main power of the vehicle is mainly concentrated on the front or rear wheels as the driving wheels, which can ...

Claims

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Application Information

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IPC IPC(8): B60L15/20B60K17/34B60R16/023
CPCB60K17/34B60L15/20B60R16/0231Y02T10/72
Inventor 陆群张伟建刘泽锋陈宁川曹洋赵森宋微赵建强高玉茹
Owner CH AUTO TECH CORP CO LTD
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