Shift controlling method of clutch-less operation for parallel type mixed power automobile

A hybrid vehicle, clutchless technology, applied in the direction of hybrid vehicles, joint control, electric vehicles, etc., can solve the problems of long power interruption time, fast wear of the clutch, large shifting impact, etc., to prolong the life of the clutch and accelerate the vehicle Enhanced performance and reduced shift shock

Inactive Publication Date: 2005-03-16
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In AMT vehicles, the clutch control of the shifting process is very important and complicated, which can easily lead to rapid wear of the clutch, longer power interruption time and greater shifting impact

Method used

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  • Shift controlling method of clutch-less operation for parallel type mixed power automobile
  • Shift controlling method of clutch-less operation for parallel type mixed power automobile
  • Shift controlling method of clutch-less operation for parallel type mixed power automobile

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Embodiment Construction

[0038] The following detailed description will be given with reference to the accompanying drawings in conjunction with the embodiments, so as to have a deeper understanding of the purpose, features and advantages of the present invention.

[0039] Such as figure 1 As shown, the power system of a parallel hybrid car using AMT (automated manual transmission) is mainly composed of engine, clutch, main motor and manual transmission (including synchronizer). This power system is similar to the power system of a traditional internal combustion engine + manual transmission, both of which require shift control.

[0040] Such as figure 2 As shown, the traditional shift control process with clutch operation is divided into seven major steps: driving torque control, disengaging the clutch, removing the old gear, synchronizing the speed, engaging the new gear, engaging the clutch, and driving torque recovery control (see figure 2 (a)), it is necessary to disengage and engage the clut...

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PUM

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Abstract

The invention relates to a kind of gear shifting controlling method of operation without clutch of parallelly connected mixed power automobile , which belongs to the technique field of power assembly control of mixed power automobile and the control of gear shifting course . Its characteristic lays in that it doesn't use clutch in the automobile gear shifting course , but will pluck old gear and hitch new gear when the hybrid torque output of engine and generator is 0 , thus to realize the aim of shifting gear . The invention needn't separate the clutch before plucking old gear and needn't engage the clutch before hitching new gear , it utilizes the rotational speed of engine and outputting toque MAP picture in proper opening degree of air damper to control the outputting torque of generator , thus control the hybrid outputting torque of the engine and generator being 0 , then pluck old gear and hitch new gear . The invention can reduce the time of gear shifting course , lengthen the service life of the clutch , improve the quality of gear shifting course and improve the accelerating performance of the vehicle , and because it needn't separate the clutch in the gear shifting course , the controlling logic of gear shifting is simplified .

Description

technical field [0001] The invention discloses a shift control method for clutchless operation of a parallel hybrid electric vehicle, which belongs to the technical field of power assembly control and shift process control of a parallel hybrid electric vehicle. Background technique [0002] The AMT (automated manual transmission) type transmission mechanism is an ideal transmission mechanism scheme for hybrid cars. Traditional manual mechanical transmission The shifting process of a traditional vehicle is completed by the steps of disengaging the clutch, removing the old gear, synchronizing the speed, engaging the new gear and engaging the clutch, that is, the shifting process needs to be completed by disengaging and engaging the clutch. In AMT vehicles, the clutch control in the shifting process is very important and complicated, which can easily lead to rapid wear of the clutch, longer power interruption time and greater shifting impact. Contents of the invention [000...

Claims

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Application Information

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IPC IPC(8): B60K6/36B60K6/48B60W20/10B60W20/30
CPCY02T10/6221Y02T10/62
Inventor 廖承林张俊智
Owner TSINGHUA UNIV
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