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Two-wheeled hub motor driven pure electric vehicle controller and control method

A pure electric vehicle and vehicle controller technology, applied in the direction of electric vehicles, electric vehicle charging technology, drive interaction, etc., can solve the problems of insufficiently reflecting the advantages of differential torque control, so as to improve the kinematic performance and good torque of the vehicle Vector control, the effect of improving vehicle maneuverability

Active Publication Date: 2019-11-19
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the vehicle controller for pure electric vehicles is not enough to meet the needs of in-wheel motor control, and it is not enough to reflect the advantages of differential torque control

Method used

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  • Two-wheeled hub motor driven pure electric vehicle controller and control method

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0019] Such as figure 1 The shown two-wheel in-wheel motor drives a pure electric vehicle vehicle controller, which includes a power control module 1, a signal acquisition module 2, an MCU 3, a CAN communication module 4, a kinematic parameter module 5, and an internal voltage monitoring module 6;

[0020] The power supply control module 1 is used to supply power to the external sensors of the vehicle to meet the power supply requirements of various functions. According to different power supplies, the vehicle controller can provide 12V power supply, 5V power supply and 3.3V power supply;

[0021] The internal voltage monitoring module 6 is used to detect whether the output voltage signal of the power supply control module is valid. The first step of the detection principle is to identify whether the voltage signal on the circuit can be collecte...

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Abstract

The invention discloses a two-wheeled hub motor driven pure electric vehicle controller. A signal collecting module of the pure electric vehicle controller is used for collecting an electronic shiftersignal, a hub motor differential torque control switch signal, an accelerator pedal status signal, a brake pedal status signal and a brake pedal opening signal; a CAN communication module is used forsending wheel speed signals of all wheels, a steering wheel angle signal, a vehicle speed signal, a power battery SOC value, a ABS trigger signal and a battery management system working state signalto an MCU; a kinematics parameter module is used for sending a yaw angle velocity signal and a three-axis vehicle acceleration signal required by the differential torque control to the MCU; and identification of driving intention of a driver, controlling of differential torque yawing moment, controlling of driving and skid resistance and controlling of braking energy recovery are conducted by theMCU. According to the two-wheeled hub motor driven pure electric vehicle controller, the control conditions of a hub motor can be met, and the differential torque control advantages are reflected.

Description

technical field [0001] The invention relates to the field of in-wheel motor vehicles, in particular to a controller and a control method for a two-wheel in-wheel motor-driven pure electric vehicle. Background technique [0002] Two-wheel hub motors drive pure electric vehicles. Two hub motors are installed in the wheels and the two wheels are controlled independently. The devices are all integrated into the hub, omitting mechanical transmission components such as clutches, transmissions, transmission shafts, differentials, transfers, etc., with faster response speed. Therefore, the dynamic performance of the whole vehicle can be improved by using the characteristics of independent controllability and quick response of the torque of the two-wheel hub motors. [0003] In order to achieve the above control objectives, the key technology is to design a vehicle controller and its control method. Through the vehicle controller, using the characteristics of high-voltage two-wheel ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/20B60L15/28B60L15/38
CPCB60L15/20B60L15/28B60L15/38B60L2220/44B60L2240/12B60L2240/14B60L2240/24B60L2240/423B60L2240/48B60L2240/547B60L2240/549B60L2250/26Y02T10/72Y02T90/16
Inventor 张泽阳史建鹏赵春来秦博王念王秋来李洪涛
Owner DONGFENG MOTOR CORP HUBEI
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