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Drive apparatus for hybrid vehicle, and control method and control device thereof

A technology of hybrid electric vehicles and driving devices, which is applied in the direction of hybrid electric vehicles, power devices, control devices, etc., and can solve problems such as the output torque of motors

Inactive Publication Date: 2007-07-04
AISIN AW CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem that in order to perform speed tracking control on the motor, it may not be possible to ensure that the output torque of the motor corresponding to the torque requested by the driver is output.
Therefore, there is a problem that the running state of the vehicle cannot be quickly responded to the driver's operation.

Method used

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  • Drive apparatus for hybrid vehicle, and control method and control device thereof
  • Drive apparatus for hybrid vehicle, and control method and control device thereof
  • Drive apparatus for hybrid vehicle, and control method and control device thereof

Examples

Experimental program
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no. 1 approach

[0036] Hereinafter, a first embodiment of the present invention will be described based on the drawings.

[0037] FIG. 1 is a conceptual diagram schematically showing a system configuration of a drive device for a hybrid vehicle according to the present embodiment.

[0038] The drive device 1 according to the present embodiment is mounted on a hybrid vehicle, and is a device that transmits the driving force of one or both of the motor / generator M / G and the engine E to the wheels W. Further, the driving device 1 transmits the driving force of the motor / generator M / G to the engine E to start the engine E when the engine E is stopped. Therefore, the composition of the driving device 1 includes: a motor / generator M / G; a first clutch C1 that transmits or cuts off driving force between the motor / generator M / G and the engine E; between the engine M / G and the wheel W, and functions as a second clutch C2 that transmits or cuts off the driving force of one or both of the motor / generato...

no. 2 approach

[0118] Next, a second embodiment of the present invention will be described. The hybrid vehicle control device 1 according to the present embodiment is compared with the hybrid vehicle drive device 1 according to the above-mentioned first embodiment, and the control process of "starting the engine at high rotation speed" (refer to step #04 in FIG. 2 )different. In detail, the control method when increasing the operating pressure C1 of the first clutch C1 in order to start the engine E (see step #37 in FIG. 4 ) is different. Other points are the same as those of the above-mentioned first embodiment.

[0119] That is, in the hybrid vehicle drive system 1 according to the present embodiment, in the control process of "starting the engine at high rotation speed", when the operating pressure P1 of the first clutch C1 is increased due to an engine start request, the engine is activated based on the accelerator opening. Control is performed to change the degree of increase in the o...

no. 3 approach

[0130] Next, a third embodiment of the present invention will be described. The hybrid vehicle drive device 1 according to the present embodiment is the same as the above-mentioned second embodiment, except for the control process of "starting the engine at high rotation speed" (see step #04 in FIG. 2 ). Specifically, when the operating pressure P1 of the first clutch C1 is increased due to an engine start request, the degree of increase of the operating pressure P1 of the first clutch C1 is determined based on the accelerator opening S and the accelerator opening change speed dS / dt. Change control. In this point, it is different from the first embodiment described above. Other points are the same as those of the above-mentioned first embodiment. Hereinafter, this point will be described in detail.

[0131] In the present embodiment, in the "engine start at high rotation speed" control process, when the operating pressure P1 of the first clutch C1 is increased due to an eng...

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PUM

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Abstract

A drive device for a hybrid vehicle, capable of quickly outputting, even during engine start operation, appropriate output torque to a motor in response to a request by accelerator operation or the like by a driver, and a control method for the drive device. The drive device for a hybrid vehicle comprises a motor, a clutch for making or interrupting transmission of drive force between the motor and an engine, and a control device for performing operation control of the motor and the clutch. Upon receiving an engine start request while wheels are driven by the motor, the control device increases a working pressure P1 of the clutch to start transmission of torque from the motor to the engine side, detects torque Tc transmitted through the clutch, and performs control in which output torque Tmg of the motor is the sum of the transmission torque Tc and wheel drive request torque Tth that is determined based on the accelerator opening.

Description

technical field [0001] The present invention relates to a driving device installed in a hybrid vehicle running together using an engine and a motor, a control method and a control device thereof. Background technique [0002] As a related control technology at the time of engine start of a drive device installed in a hybrid vehicle that runs using both an engine and a motor, for example, the following technology is described in Patent Document 1 below. This control technology is used in a drive system of a parallel hybrid vehicle with an engine disconnect clutch to maintain a smooth vehicle response according to the driver's request by using an electric motor while engaging the engine disconnect clutch to start the engine. Here, the electric motor is controlled in the speed tracking control mode in which control is performed regardless of the torque required to obtain a desired set speed while the engine is being started. That is, when the engine is started, first, the engi...

Claims

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Application Information

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IPC IPC(8): B60W10/02B60W10/04B60W20/00B60W10/06B60W10/08B60K6/04B60L11/14B60K6/48B60L50/16F02N11/04
CPCB60W10/06B60L11/14B60K6/48Y02T10/7077B60W10/02B60W30/188F02N11/08Y02T10/6221B60W20/00B60L15/2054B60L2240/423B60L2240/443Y02T10/72B60L50/16Y02T10/62Y02T10/64Y02T10/7072
Inventor 小林靖彦山口康夫
Owner AISIN AW CO LTD
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