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Hybrid drive system

A driving device and hybrid technology, applied in the direction of power devices, electric power devices, hybrid vehicles, etc., can solve the problems of driving force fluctuations, inability to properly rotate the second motor, etc.

Active Publication Date: 2013-04-10
AISIN AW CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, when the output torque control of the second rotating electrical machine for canceling the driving force variation caused by the engine startup is performed as described above, if the output torque of the second rotating electrical machine is limited, it may not be properly performed. In the case of the control of the second rotating electrical machine for offsetting the driving force fluctuation
In this case, the output torque of the first rotating electric machine for starting the engine is transmitted to the wheels, and there is a possibility that the driving force of the wheels may fluctuate undesired by the driver.

Method used

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no. 1 approach

[0037] A first embodiment of the present invention will be described based on the drawings. figure 1 It is a skeleton diagram showing the mechanical configuration of the hybrid drive device H according to the present embodiment. figure 2 It is a block diagram showing the system configuration of the drive device H for a hybrid vehicle according to the present embodiment. and, figure 2 The dotted line in the middle indicates the transmission path of electric power, and the arrow in the solid line indicates the transmission path of various information. Such as figure 1 As shown, the hybrid drive device H is configured as a so-called two-motor discrete type hybrid drive device H that includes an engine E and two motor-generators MG1 and MG2 as drive power sources, and includes The planetary gear device PG for power distribution in which the output of E is distributed to the first motor-generator MG1 side, the wheels W, and the second motor-generator MG2 side.

[0038] That i...

no. 2 approach

[0094] Next, a second embodiment of the present invention will be described. The hybrid drive device H of the present embodiment is different from the above-mentioned first embodiment in that it includes a control for canceling the above-mentioned torque limiting control in a state where the counter drive gear O as an output member is fixed. Limitation of the forward output torque of the first motor-generator MG1. That is, in the state where the counter drive gear O is fixed, the MG1 torque T1 is not transmitted from the counter drive gear O to the wheel W side. As a result, even when the first motor-generator MG1 outputs positive torque for starting the engine or the like, the output torque is not transmitted to the wheels W to cause a driver's undesired vehicle failure. Changes in driving forces. In addition, since the electric power required for driving the first motor-generator MG1 at this time is smaller than the electric power required for driving the second motor-gene...

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Abstract

A hybrid drive system includes an input member connected to an engine; an output member connected to a wheel; a first rotating electric machine; a second rotating electric machine; a differential gearing; a controller that controls the first rotating electric machine and the second rotating electric machine; and an electric power supplier that supplies the first rotating electric machine and the second rotating electric machine with electric power.

Description

technical field [0001] The present invention relates to a hybrid drive device comprising: an input member connected to an engine, an output member connected to a wheel, a first rotating electric machine, a second rotating electric machine, a differential gear device, and a device for controlling the first rotating electric machine and the above-mentioned electric rotating machine. A control mechanism for the second rotating electric machine, and a power supply mechanism for supplying electric power to the first rotating electric machine and the second rotating electric machine. Background technique [0002] In recent years, from the viewpoint of energy saving or environmental issues, attention has been paid to hybrid vehicles equipped with an engine and a rotating electrical machine (motor or generator) as a driving force source, and various hybrid drive devices used therein have been proposed. constitute. Among such hybrid vehicles, there are many types in which the engine...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W10/08B60W20/00B60K6/445B60L11/14B60L50/16
CPCB60L2240/423B60W20/00Y02T10/6286Y02T10/6239Y10S903/903B60K1/02B60W10/06B60W2510/244B60K6/445B60W10/26Y02T10/642B60W2710/083B60W10/08B60K6/365Y02T10/62Y02T10/64B60K2006/268
Inventor 田中和宏伊泽仁大野佳纪青木一男
Owner AISIN AW CO LTD