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A hybrid vehicle control and amt integrated control system

A hybrid system and vehicle control technology, applied in hybrid vehicles, motor vehicles, transportation and packaging, etc., can solve the problem that ordinary drivers are difficult to operate precisely

Inactive Publication Date: 2011-11-30
海博瑞德(北京)汽车技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Except for real masters, it is difficult for ordinary drivers to achieve the most precise operation

Method used

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  • A hybrid vehicle control and amt integrated control system
  • A hybrid vehicle control and amt integrated control system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Stopping and starting: When parking, the engine and the rear wheel drive motor are in the stop working state. If there is a willingness to start the vehicle, the hybrid vehicle controller VCU according to the state of the battery management system BCM, if the battery power level is lower than a certain limit (the limit value is determined by the driving calibration to determine the final reasonable value), the hybrid vehicle controller will The VCU controls the engine controller ECU to start the engine, the engine transmits the power to the AMT, the VCU controls the AMT to select the appropriate gear, and transmits the power to the front wheel half shaft, driving the front wheels to drive the vehicle forward or backward; if the battery SOC is at a certain limit The above (experimental calibration is confirmed), then the VCU controls the motor controller MCU, drives the motor, and transmits the motor power to the rear wheel reduction differential, and then transmits it to...

Embodiment 2

[0026] Low-speed motor drive: VCU detects that the vehicle speed is lower than a certain set speed (such as 30km / h) and the battery power level is normal, then the VCU controls the ECU to stop the engine, controls the MCU to drive the motor, and uses the power of the motor to drive the rear wheels; if the battery is low , then the VCU controls the ECU and makes the engine work and controls the AMT at the same time, using the front drive mode.

Embodiment 3

[0028] High-speed engine drive: When the VCU detects that the vehicle speed is higher than a certain set speed, start the engine. After the engine speed stabilizes, the VCU selects the appropriate gear according to the current vehicle speed and working conditions, and then the VCU controls the MCU to gradually reduce the output power of the motor until it is Zero, to achieve a smooth transition from low-speed electric drive to high-speed engine drive. After that, the engine is used to drive the vehicle to drive at high speed, and the engine's better output torque characteristics in the high speed range are brought into play.

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Abstract

A hybrid vehicle control and AMT integrated control system integrates the vehicle control management system VMS and the AMT control system on one module, that is, realizes the control functions of the two on one controller hardware. The electronic control system of the hybrid power system consists of 4 electronic control units, which are the engine management system (EMS) ECU, the rear axle drive motor controller MCU, the battery management unit BMS that monitors the state of the power battery, and is responsible for coordinating the control of various components. unit of the vehicle electronic control unit VCU. Each controller forms a distributed CAN bus network, and transmits information through the CAN bus to realize coordinated control.

Description

[0001] technical field [0002] The invention relates to a vehicle control system and an AMT integrated controller, in particular to a hybrid vehicle control system and an AMT integrated controller. [0003] Background technique [0004] The vehicle control system is the central nervous system of the vehicle, which is a distributed control system formed around the CAN bus network. The vehicle controller is connected to the auxiliary power unit electronic controller (APU-ECU), motor controller (MCU), and information display data acquisition system (DAQ) respectively through the CAN bus network to form a distributed control network. The vehicle controller (VMS, vehicle management Syetem), that is, the powertrain controller. It is the core control component of the whole car. It collects accelerator pedal signals, brake pedal signals and other component signals, and after making corresponding judgments, it controls the actions of the lower-level component controllers to drive ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/06B60W10/08B60W10/26B60W20/00B60W20/15B60W20/16
CPCY02T10/6286Y02T10/62
Inventor 陈超杨国伟张虹
Owner 海博瑞德(北京)汽车技术有限公司
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