Method and system for starting hybrid electrical vehicle

A hybrid electric vehicle, starting mode technology, applied in hybrid electric vehicles, motor vehicles, transportation and packaging, etc., can solve the problem of a single motor and achieve the effect of ensuring the economical efficiency of the vehicle

Active Publication Date: 2012-07-04
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a method and system for starting a hybrid electric vehicle to solve the defects caused by the use of a single motor for starting a hybrid electric vehicle in the prior art, and to determine the corresponding Automobile starting mode, providing suitable starting performance for hybrid vehicles, ensuring vehicle economy and battery protection

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  • Method and system for starting hybrid electrical vehicle
  • Method and system for starting hybrid electrical vehicle
  • Method and system for starting hybrid electrical vehicle

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Embodiment Construction

[0037] The embodiment of the present invention aims to provide a method and system for starting a hybrid electric vehicle, so as to determine the corresponding vehicle starting mode according to the actual situation when the hybrid electric vehicle is started, provide suitable starting performance for the hybrid electric vehicle, and ensure the economical efficiency of the vehicle. performance and battery protection. Embodiments of the present invention are only aimed at hybrid vehicles with parallel power transmission systems. In the embodiment of the present invention, the starting modes of the hybrid electric vehicle are divided into four types, including: starting the electric motor alone, starting the engine and the electric motor together, starting the engine and the generator together, and starting the engine alone.

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accomp...

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Abstract

The embodiments of the invention disclose a method and a system for starting a hybrid electrical vehicle. In the method, the hybrid electrical vehicle has the following four starting modes: motor start-up, motor and engine combined start-up, engine and engine combined start-up and engine start-up. The method judges the present appropriate vehicle starting mode according to the present working condition information of the vehicle before determining the vehicle starting mode, so as to optimize the present starting performance of the vehicle. The vehicle working condition information includes transmission case input shaft torque, SOC and battery working conditions. The method and the system achieve the purpose of meeting the requirements for different vehicle starting accelerations, ensure economical efficiency of the vehicle and protect the battery.

Description

technical field [0001] The invention relates to the technical field of automobile starting, and more specifically, relates to a method and system for starting a hybrid electric vehicle. Background technique [0002] At present, cars equipped with electronically controlled automatic transmission AMT (Automated Mechanical Transmission) generally have multiple power sources to adjust the power of the vehicle accordingly under different vehicle conditions to achieve fuel economy. A vehicle equipped with multiple power sources is referred to as a hybrid vehicle for short. The common power sources of existing hybrid vehicles include an electric motor powered by batteries and an engine powered by fuel. figure 1 It is a structural block diagram of a parallel power transmission system of a hybrid electric vehicle in the prior art, referring to figure 1 , the working principle of the system is as follows: the motor starts to rotate under the power supply of the battery, the motor dri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/00B60W10/06B60W10/08B60W40/09B60W40/12B60W20/13
CPCY02T10/6286Y02T10/62
Inventor 韩尔樑李欣欣
Owner WEICHAI POWER CO LTD
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