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Start and stop control method for engine of AMT (automated mechanical transmission) parallel connection type hybrid electrical vehicle

A hybrid vehicle, start-stop control technology, applied in hybrid vehicles, motor vehicles, transportation and packaging, etc., can solve problems such as fuel waste, and achieve the effect of reducing idling time

Inactive Publication Date: 2012-06-13
HUNAN CSR TIMES ELECTRIC VEHICLE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] According to the analysis of the collected data of the actual driving conditions of the hybrid electric bus, it is shown that the engine idle time accounts for 30%~50% of the entire cycle operating time, and when the engine is idling, fuel is wasted

Method used

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  • Start and stop control method for engine of AMT (automated mechanical transmission) parallel connection type hybrid electrical vehicle
  • Start and stop control method for engine of AMT (automated mechanical transmission) parallel connection type hybrid electrical vehicle
  • Start and stop control method for engine of AMT (automated mechanical transmission) parallel connection type hybrid electrical vehicle

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] The structure diagram of the MT vehicle system is shown in Figure 1. Instead of the traditional gearbox, the AMT actuator is used to realize automatic gear shifting, and the clutch adopts an electro-pneumatic clutch. It can be seen from the system block diagram that when the clutch is disengaged, the engine is started with normal ignition. After the clutch is closed, the target torque is sent to the electric motor, and the electric motor can bring the engine to the starting speed to complete the starting task.

[0023] A method for controlling engine start and stop of an AMT parallel hybrid electric vehicle, which detects the vehicle operation mode, gear position, clutch state, engine speed, motor speed, energy storage system voltage, and accelerator pedal of the AMT parallel hybrid electric vehicle through a detection system Parameters...

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Abstract

The invention discloses a start and stop control method for an engine of an AMT (automated mechanical transmission) parallel connection type hybrid electrical vehicle. The start and stop control method is characterized in that a detecting system detects an integral running mode, a gear state, a clutch state, the rotation speed of the engine, the rotation speed of a motor, the voltage of an energy storage system and parameters of an accelerator pedal, transmits start and stop commands for the engine, and controls start and stop of the engine; an integral vehicle controller controls an ISG (integrated starter generator) to start so as to drive the engine to start; and a flameout signal is introduced for an engine controller, and when the vehicle stops and the engine needs to stop, the integral vehicle controller transmits the flameout signal to the engine controller.

Description

technical field [0001] The invention relates to engine control of an AMT parallel hybrid electric vehicle, in particular to an engine start-stop control method of an AMT parallel hybrid electric vehicle. Background technique [0002] At present, the two major problems facing the sustainable development of the world's automobile industry are environmental pollution and lack of oil resources. Environmental protection and energy saving are an important development direction of automobile technology in the 21st century. At the same time, the emission regulations of various countries are becoming increasingly strict. Hybrid Electric Vehicle (HEV) is a new generation of clean energy vehicles with the characteristics of low pollution and low fuel consumption. [0003] At present, the mild hybrid electric vehicle with the lowest manufacturing cost and the easiest mass production is the integrated engine generator / motor (ISG) technology. The motor with high transient power replaces ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/182B60W20/00B60W10/06B60W10/08B60W20/10
CPCY02T10/6286Y02T10/62
Inventor 李明哲刘文洲席力克裴海灵谢勇波王文明盛旺李晟
Owner HUNAN CSR TIMES ELECTRIC VEHICLE
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