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An electric vehicle single-controller coupling driving device and its working method

An electric vehicle, single-controller technology, applied in the control drive, electric vehicle, power unit, etc., can solve the problems of increasing the electric wheel hub motor drive control design, uneven steering torque distribution, and difficult steering angle control, etc., to achieve a reasonable Torque distribution, rapid drive response, and elimination of communication links

Active Publication Date: 2020-06-23
无锡科铭新汽车电子系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In electric vehicles driven by dual hub motors, the hub motors can effectively save the space of the car, and the drive of each hub motor needs to be controlled by an independent controller, and the command signal is transmitted through the CAN bus, so that It not only increases the drive control design of the electric wheel hub motor, but also requires independent calculations when performing the corresponding operation of the two driving hub motors, which makes the steering torque distribution of the two wheel hub motors uneven, resulting in untimely steering and difficult steering angles. control

Method used

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  • An electric vehicle single-controller coupling driving device and its working method
  • An electric vehicle single-controller coupling driving device and its working method
  • An electric vehicle single-controller coupling driving device and its working method

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Embodiment 2

[0047] like Figure 3 to Figure 7 As shown, a hub motor driving device for an electric vehicle includes a hub motor device and a drive control system for controlling its operation. The hub motor device includes a hub 1, a main shaft 2, a rear end cover 3, a rotor 4, a stator 5 and a stator bracket 6, wherein the stator 5 is fixedly installed on the stator bracket 6, the stator bracket 6 includes a shaft sleeve 601, a middle support plate 602 and a winding stator seat 603, and the shaft sleeve 601, the middle support plate 602 and a winding stator seat 603 is integrally formed, and the shaft sleeve 601 is fixedly set on the main shaft 2, the side surface of the winding stator seat 603 is provided with a copper ring 7, and the side surface of the copper ring 7 is installed with a closed aluminum frame ring 8 , the auxiliary stator seat 9 is set on the shaft of the main shaft 2 between the rear end cover 3 and the shaft sleeve 601, and the auxiliary stator seat 9 is set on the ma...

Embodiment 3

[0059] The present invention also relates to a drive control system for a single-controller coupling drive device of an electric vehicle, which includes a drive control unit ECU, a storage battery pack, an in-wheel motor device, an energy assist device installed on the in-wheel motor device, a mode controller and a sensor The group and the drive control unit ECU actively receive the A / D converted detection signal of the sensor group through the CAP interface in the power-on state, and the signal transmission mode controller after the calculation of the drive control unit ECU performs the state matching of the electric vehicle, and at the same time, the feedback The signal is transmitted to the drive control unit ECU, and the drive control unit ECU drives the inverter with the controller to drive the work of the hub motor device according to the feedback signal, and at the same time the independent MCU unit in the mode controller will control the work of the energy assist device,...

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Abstract

An electric vehicle single controller coupling driving device and its working method are disclosed, step 100, when the main power supply is turned on, the electronic control power supply ECU of the electric vehicle actively receives the accelerator pedal position signal, the brake pedal position signal, the motor current signal and the rotor position signal provided by the Hall position sensor, and calculates and distributes the signals; step 200, the ECU converts the calculation signal into PWM regulation, decides the torque distribution of the two electric wheel devices, simulates the motionstate of the hub motor device according to the accelerator pedal position signal, the brake pedal position signal, the displacement sensor signal, the gyro signal and the acceleration sensor signal,and drives the hub motor device to drive the hub motor to rotate; step 300, the signal calculated by the ECU of the electric vehicle is transmitted to the mode controller, and the mode controller controls the work of the energy auxiliary device in the hub motor device through the electric signal, and the ECU receives the feedback signal of the energy auxiliary device in real time through the CAN bus.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to an electric vehicle single-controller coupling drive device and a working method thereof. Background technique [0002] Electric vehicles use motors as the power source, and their power distribution is mainly divided into two categories: shaft drive and wheel drive. The hub motor drive device is an advanced driving method for electric vehicles. In recent years, the rapid development and wide application of electric bicycles and electric vehicles has raised the hub motor technology to a new level. The hub motor technology is also called the wheel built-in motor technology. , its biggest feature is that it integrates the power device, transmission device and braking device into the hub, which greatly simplifies the mechanical part of the electric vehicle. The hub motor drive system is mainly divided into two structural types according to the rotor type of the motor: Inner rotor ty...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L15/20B60K7/00B60R16/023
CPCB60K7/0007B60L15/20B60R16/023Y02T10/64Y02T10/72
Inventor 张娟
Owner 无锡科铭新汽车电子系统有限公司
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