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Vehicular drive system

A driving device and vehicle technology, which can be used in transmission control, motor starting for engines, engine components, etc., and can solve problems such as the large-scale cost of the driving device

Inactive Publication Date: 2013-08-21
AISIN AW CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Here, the above-mentioned problems can be solved by increasing the capacity of the accumulator, but with the increase in size of the accumulator, new problems such as an increase in the size of the driving device and an increase in cost arise.

Method used

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  • Vehicular drive system
  • Vehicular drive system
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Experimental program
Comparison scheme
Effect test

no. 1 approach

[0035] First, the first embodiment will be described. Here, refer to figure 1 The vehicle drive system of the first embodiment will be described. figure 1 It is a configuration diagram showing a schematic configuration of a vehicle drive system according to the first embodiment.

[0036] like figure 1 As shown, the vehicle drive system of the first embodiment has an engine 10, a continuously variable transmission 30, a control unit 40 for controlling the system as a whole, and various components for detecting the states of the engine 10, the continuously variable transmission 30, and the vehicle. kinds of sensors.

[0037] The engine 10 is provided with an injector 11 , a starter 12 , and an igniter 13 . Furthermore, a continuously variable transmission 30 is connected to an output shaft of the engine 10 .

[0038] An intake manifold 15 and an exhaust manifold 16 are connected to each cylinder of the engine 10 . Furthermore, a throttle valve 17 linked to an accelerator p...

no. 2 approach

[0082] Next, a second embodiment will be described. The basic structure of the second embodiment is substantially the same as that of the first embodiment, but the structure of the hydraulic circuit included in the continuously variable transmission is different. Therefore, referring to Figure 5 The hydraulic circuit of the vehicle drive system of the second embodiment will be described. Figure 5 It is a figure which shows the hydraulic circuit of the vehicle drive system of 2nd Embodiment. In the following, the same reference numerals will be assigned to the same configurations as those of the first embodiment in the drawings, and descriptions thereof will be appropriately omitted, and the description will focus on different configurations.

[0083] like Figure 5 As shown, in the hydraulic circuit 150, compared with the hydraulic circuit 50 of the first embodiment, the arrangement position of the manual valve 56 is changed. Specifically, the manual valve 56 is arranged...

no. 3 approach

[0089] Finally, a third embodiment will be described. The basic structure of the third embodiment is substantially the same as that of the second embodiment, but the structure of the hydraulic circuit included in the continuously variable transmission is different. Therefore, referring to Image 6 The hydraulic circuit of the vehicle drive system of the third embodiment will be described. Image 6 It is a figure which shows the hydraulic circuit of the vehicle drive system of 3rd Embodiment. In addition, below, the structure common to 2nd Embodiment is attached|subjected to the same code|symbol in drawing, and the description is abbreviate|omitted suitably, and it demonstrates centering on a different structure.

[0090] like Image 6 As shown, compared with the hydraulic circuit 150 of the second embodiment, the hydraulic circuit 250 is provided with an electromagnetic on-off valve 96 for opening and closing the oil passage in the oil passage 79 instead of providing a chec...

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PUM

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Abstract

A vehicle drive unit includes a clutch pressure control valve that controls hydraulic pressure for operating the clutch; a clutch control valve that is provided in a first oil passage between the clutch pressure control valve and the clutch, and that controls hydraulic pressure in an engagement state between full engagement and disengagement of the clutch; a second oil passage that bypasses the clutch control valve and that is arranged parallel to the first oil passage; and a shift valve that connects, to an oil passage connected to the clutch, the first oil passage when controlling the engagement state between full engagement and disengagement of the clutch, and the second oil passage when not controlling the engagement state between full engagement and disengagement of the clutch.

Description

technical field [0001] The present invention relates to a vehicle drive device capable of quickly supplying hydraulic pressure to a clutch and quickly engaging the clutch, for example, when the engine is restarted from a state where the engine is stopped by an idling stop function. Background technique [0002] Conventionally, in order to save fuel, reduce exhaust emissions, reduce noise, etc., vehicles having a function of automatically stopping the engine (idling stop function) when a predetermined condition is satisfied during driving have been realized. In such a vehicle, for example, when all the conditions such as the vehicle speed is zero, the accelerator pedal is not depressed, and the brake is applied, the engine is stopped. [0003] Here, when the engine is stopped, the oil pump normally connected to the engine is also stopped. Therefore, for example, the oil supplied to the forward clutch to engage the forward clutch during forward running is also released from t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/00
CPCF16H2312/14F02N11/0833F16H2061/0034F16H61/0021F16H61/0206Y02T10/40
Inventor 白坂治树岩鹤优儿谷纪之加藤正义
Owner AISIN AW CO LTD