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hydraulic control device

A control device, hydraulic technology, applied in the direction of transmission control, components with teeth, belts/chains/gears, etc., can solve the problems of complex structure and many parts, and achieve the effect of simple structure

Inactive Publication Date: 2016-08-17
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] As in the configuration described in Patent Document 1, if two accumulators are provided for the hydraulic pressure supply when the engine is restarted and for reducing the engagement shock, the number of parts will increase and the configuration will become complicated.

Method used

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Examples

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Embodiment Construction

[0016] Embodiments of the hydraulic control device of the present invention will be described below based on the drawings. In addition, in the following drawings, the same reference numerals are given to the same or corresponding parts, and description thereof will be omitted.

[0017] First, refer to figure 1 The structure of the vehicle 2 equipped with the hydraulic control device 1 of this embodiment is demonstrated. Such as figure 1 As shown, the vehicle 2 includes an engine 3 as a driving power source, drive wheels 4 , a power transmission device 5 , a hydraulic control device 1 , and an ECU (Electronic Control Unit: Electronic Control Unit) 7 .

[0018] The engine 3 is a driving source (prime mover) for running the vehicle 2 , and consumes fuel to generate power that acts on the drive wheels 4 of the vehicle 2 . The engine 3 can cause the crankshaft 8 which is the output shaft of the internal combustion engine to generate mechanical power (engine torque) along with co...

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Abstract

The hydraulic control device (1) is equipped with an accumulator (42) that accumulates the pressure of the oil supplied by the mechanical pump (31) and discharges the accumulated oil to the C1 control system (18) (clutch). The first oil passage (46) connected to the hydraulic passage (33) (clutch oil passage 38) on the upstream side of the linear solenoid (40) is connected to the hydraulic passage (33) on the downstream side of the manual valve (41) The second oil passage (47) of the accumulator (42) and the connection of the hydraulic circuit (33) are controlled so that the accumulator (42) is connected with the first oil passage (46) and the second oil passage (47) One of them communicates with the connection control unit (switching valve 48, pressure accumulation control valve 43). According to this configuration, a plurality of functions (accumulation / discharge function, shock absorber function) can be realized by a single accumulator (42).

Description

technical field [0001] The present invention relates to hydraulic control devices. Background technique [0002] Conventionally, there is known a vehicle capable of performing an idling stop function in which the engine is stopped and the clutch is released while the vehicle is running. In such a vehicle, it is known that if the engine is stopped during the execution of the idling stop function, the hydraulic pressure for actuating the clutch drive system may be insufficient. The configuration of an accumulator for pressure accumulation / discharge (for example, Patent Documents 1 and 2). In addition, Patent Document 1 discloses a first accumulator for supplying hydraulic pressure to the drive system of the clutch and a second accumulator for reducing the engagement shock of the clutch when the engine is restarted when returning from idle stop control. The composition of the energy device. [0003] Patent Document 1: JP-A-2002-115755 [0004] Patent Document 2: JP-A-2010-1...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/00
CPCF16H61/0003F16H61/0025F16H61/0267F16H2061/0034F16H61/0021F16H61/00B60W10/02B60W10/06
Inventor 森野拓郎森山修司伊藤良雄
Owner TOYOTA JIDOSHA KK