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Drive unit for mixed motor vehicle

A hybrid vehicle and drive unit technology, applied in hybrid vehicles, motor vehicles, control driving, etc., can solve problems such as increased gear noise of planetary gear sets

Inactive Publication Date: 2009-02-04
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the hybrid vehicle disclosed in Japanese Patent Application Publication No. JP11-93725 A, if the torque of the second electric motor connected to the planetary gear set is substantially zero, gear noise occurring in the planetary gear set may increase. Big

Method used

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  • Drive unit for mixed motor vehicle
  • Drive unit for mixed motor vehicle
  • Drive unit for mixed motor vehicle

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Embodiment Construction

[0022] In the following description and drawings, the invention will be described in more detail on the basis of exemplary embodiments. Note that the same reference numerals will be assigned to the same or equivalent elements, and detailed description for the same numbered elements will be made only once.

[0023] figure 1 A schematic diagram of a drive unit (drive train) and a control system thereof of an FF (Front Engine Front Drive) hybrid vehicle 1 according to an embodiment of the present invention is illustrated.

[0024] Such as figure 1 As shown, a hybrid vehicle 1 includes an engine 2 and wheels 3 . A power transmission path between the engine 2 and the wheels 3 is formed by an input shaft 4, an output shaft 5, a differential gear unit 6, and the like.

[0025] As the engine 2, an internal combustion engine, more specifically, a gasoline engine, a diesel engine, an LPG engine, a methanol engine, or a hydrogen engine can be used. The crankshaft 7 of the engine 2 is...

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Abstract

A driver unit for the car with mixed power is disclosed. When the torque of motor is basically equal to zero, it is judged if the abnormal noise takes place in engaging mechanism according to the fluctuation of the motor's rotational angle. If the abnormal noise takes place, the absolute value of said torque can be increased to increase the pressure in said engaging mechanism to decrease the abnormal noise.

Description

technical field [0001] The present invention relates to a drive unit used in a hybrid vehicle, which can generate force for driving wheels by using both an engine and an electric motor. Background technique [0002] In recent years, a hybrid vehicle including an engine that outputs power by burning fuel and an electric motor that outputs power by supplying electric power has been proposed as a driving power source of the vehicle. With this hybrid vehicle, fuel efficiency can be improved, noise can be reduced, and exhaust gas can be reduced by controlling driving / stopping of the engine and the electric motor based on various situations. [0003] An example of such a hybrid vehicle including two or more driving power sources is disclosed in Japanese Patent Application Publication No. JP11-93725A. A hybrid vehicle disclosed in Japanese Patent Application Publication No. JP11-93725A includes an engine and two electric motors. This hybrid also includes planetary gear sets. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L15/20B60W20/00B60W10/08B60W20/10
CPCY02T10/6286Y02T10/6239Y02T10/7077Y02T10/72
Inventor 渡边秀人清水泰生
Owner TOYOTA JIDOSHA KK
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