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Method for controlling torsion of stepless variable-speed moderate hybrid vehicle

A technology of hybrid electric vehicles and continuously variable transmission, which is applied in hybrid electric vehicles, motor vehicles, transportation and packaging, etc., can solve the problems of reasonable energy distribution of CVT hybrid electric vehicles, and achieve the optimization of working conditions, economical fuel consumption, and high fuel efficiency. Consume more effect

Active Publication Date: 2011-01-12
江西鼎盛新材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a torque control method of a CVT moderate hybrid electric vehicle to solve the problem of rationality of energy distribution of the CVT hybrid electric vehicle

Method used

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  • Method for controlling torsion of stepless variable-speed moderate hybrid vehicle
  • Method for controlling torsion of stepless variable-speed moderate hybrid vehicle
  • Method for controlling torsion of stepless variable-speed moderate hybrid vehicle

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Embodiment Construction

[0014] The structure of the hybrid electric vehicle power system is as follows: figure 1 , including engine, continuously variable transmission CVT, motor, high-voltage battery pack, and DCDC conversion circuit. It also has the following electronic controllers: vehicle controller HCU, engine management system ECU, battery management system BCU, motor management system IPU, transmission management system TCU, etc.

[0015] The vehicle controller HCU is mainly responsible for coordination control, the engine management system ECU is mainly responsible for monitoring the engine work, the battery management system BCU is mainly responsible for monitoring the power battery work, the motor management system IPU is mainly responsible for monitoring the motor work, and the transmission management system TCU is mainly responsible for monitoring CVT Work; the engine and the motor are coaxially connected, and the torque output drives the wheels through the continuously variable transmiss...

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Abstract

The invention provides a method for controlling the torsion of a stepless variable-speed moderate hybrid vehicle, which comprises the following steps that: an engine management system ECU calculates the torsion required by an integral vehicle according to the displacement amount of an accelerator pedal of a driver, after the torsion required by the integral vehicle is calculated, the engine management system ECU sends the torsion required by the integral vehicle to an integral vehicle controller HCU, and the integral vehicle controller HCU distributes motor torsion and engine torsion according to the condition of the current electric quantity of a battery and the running condition of an engine. Through the method, the dynamic property of the integral vehicle can be met, and the working condition of the engine is optimized by combining with the operating characteristic of CVT, so that the integral vehicle has economic consumption of fuel oil and less pollution emission, and achieves the effects of energy conservation and emission reduction.

Description

technical field [0001] The invention belongs to the control field of hybrid electric vehicles, in particular to a torque control method of a CVT (continuously variable transmission) moderate hybrid electric vehicle. Background technique [0002] The transmission systems of hybrid electric vehicles currently on the market mainly include manual (MT), automatic (AT) and manual-automatic integrated transmission systems. Due to cost and technical reasons, there are fewer CVT hybrid vehicles, and they mainly appear on high-end cars. [0003] Although a hybrid vehicle equipped with an MT transmission system has good driving dynamics and economy, the MT has a high operating intensity for the driver, and the fuel economy and pollution emission performance of the vehicle vary depending on the driver's driving proficiency. same. A hybrid electric vehicle equipped with an AT transmission system is easy to operate and energy-saving, but has the problem of low shift efficiency. CVT tec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/06B60W10/08B60W10/10B60W10/26B60W20/00B60W10/101B60W20/10B60W20/15B60W20/16
CPCY02T10/6286Y02T10/62
Inventor 邓柯军严钦山李宗华苏岭杨宁
Owner 江西鼎盛新材料科技有限公司
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