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Control device

A control device and drive device technology, applied in the direction of control device, control drive, power device, etc., can solve problems such as vehicle impact, achieve the effect of suppressing impact and improving regeneration efficiency

Active Publication Date: 2011-08-24
AISIN AW CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the engine speed decreases due to the fully closed state of the accelerator opening so that there is a large speed difference between the input-side rotating member and the output-side rotating member of the fluid coupling, if the direct clutch is directly engaged, then there may be a shock to the vehicle (engagement shock), so this is not the preferred method

Method used

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no. 1 approach

[0041] A first embodiment of the present invention will be described with reference to the drawings. In this embodiment, a case where the control device of the present invention is applied to a vehicle drive device 1 for a hybrid vehicle will be described as an example. figure 1 It is a schematic diagram showing the configuration of a drive transmission system and a hydraulic control system of the vehicle drive device 1 according to the present embodiment. In the figure, a solid line indicates a transmission path of driving force, a dotted line indicates a supply path of hydraulic oil, and a dotted line indicates a supply path of electric power. In addition, (P1) or (P2) arranged adjacent to the dotted line indicates that the oil pressure of the working oil in the supply path is the first oil pressure P1 or the second oil pressure P2. As shown in the figure, the vehicle drive device 1 according to the present embodiment generally has a structure including an engine 11 and a r...

no. 2 approach

[0109] Next, a second embodiment of the present invention will be described. In the present embodiment, the basic configuration of the drive transmission system and hydraulic control system of the vehicle drive device 1 is the same as that of the first embodiment. However, the difference between the present embodiment and the first embodiment is that the lock control unit 37 of the present embodiment does not execute the first control process at all, but When the state determination unit 34 determines the transition of the lock-up clutch 22 from the disengaged state to the engaged state while the accelerator opening is decreased, only processing corresponding to the second control processing is executed. Next, the content of the control processing in this embodiment will be described. Figure 11 It is a flowchart showing the procedure of the control process of this embodiment. In addition, in Figure 11 In , the same processing contents as those of the first embodiment are ...

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Abstract

The objective is to improve regeneration efficiency by reducing the amount of time until a direct clutch completely engages, while suppressing the occurrence of shock caused by the engagement of the direct clutch. Disclosed is a control device that is equipped with a transmission device and with a fluid coupling having a direct clutch, and that controls a vehicle drive device which outputs to an output member the rotation of an input member which is drive-coupled to an engine and a rotating electric machine, said control device being further equipped with: a rotation difference acquisition means which acquires the difference (Delta N) in the rotational velocity, which is the difference between the rotational velocities of the input side and the output side of the fluid coupling; a direct connection control means which reduces the difference in the rotational velocities and changes the state of the direct clutch from the released state to the engaged state by increasing the engagement pressure of the direct clutch with a normal pressure increase rate that is determined according to the vehicle's driving state; and a pressure-increase control means which changes the engagement pressure by the direct connection control means to a high-speed pressure increase rate which is greater than the normal pressure increase rate when the difference (Delta N) in the rotational velocity is at or below a permissible pressure increase threshold value (C2) while the degree of accelerator opening of the vehicle is in the reduced state.

Description

technical field [0001] The present invention relates to a control device for controlling a driving device for a vehicle, wherein the driving device for a vehicle includes a fluid coupling with a direct clutch and a speed change device for drivingly connecting an engine and a rotating electrical machine The rotation of the input member is output to the output member. Background technique [0002] In recent years, a hybrid vehicle has been put into practical use, which uses both an engine and a rotary electric machine as a driving force source, thereby enabling a reduction in the fuel consumption rate of the engine and reduction in exhaust emissions. As an example of a vehicle drive device used in such a hybrid vehicle, for example, the following Patent Document 1 proposes a vehicle drive device including a fluid coupling having a direct clutch and a transmission. A device for outputting the rotation of an input member drivingly coupled to an engine and a rotating electric ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/14B60W10/02B60W20/00
CPCF16H59/18F16H2059/467B60W30/18072F16H61/143F16H2045/002B60W10/026B60K6/48B60W10/02B60W10/08Y02T10/6221B60L15/2054B60L2240/421B60L2240/423B60L2240/507Y02T10/72Y02T10/62Y02T10/64
Inventor 稻垣伸晃上野博也津田耕平森山英二筒井洋
Owner AISIN AW CO LTD