Control device for vehicle on/off control valve

A control device, control valve technology, applied in the direction of transmission control, components with teeth, belts/chains/gears, etc., to achieve the effect of minimizing power consumption and reducing current value

Inactive Publication Date: 2011-12-07
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, supplying current to the solenoid with a current value uniquely determined from the applied voltage and coil resistance results in the solenoid being in an electromagnetized state

Method used

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  • Control device for vehicle on/off control valve
  • Control device for vehicle on/off control valve
  • Control device for vehicle on/off control valve

Examples

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no. 2 example

[0192] The first embodiment has been explained above with reference to the case where the present invention is applied to the control apparatus of an engine-propelled vehicle. In contrast, the second embodiment will be described below with reference to a case where the present invention is applied to a control device of a hybrid vehicle. Also, for brevity of description, description will be provided focusing on different points.

[0193] Figure 16 is a schematic configuration diagram showing a hybrid drive apparatus 510 including a vehicle 508 to which the control device of the present invention is applied. exist Figure 16 In the hybrid drive apparatus 510, the first drive power source 12, which is the main drive power source in the vehicle 508, supplies torque transmitted to the output shaft 514 serving as an output member, and the torque is transferred from the output shaft 514 via the differential gear device 516. is further transmitted to a pair of left and right driv...

no. 3 example

[0227] The first embodiment has been explained above with reference to the case where the present invention is applied to a control device with feedback control in which feedback control is performed to control the holding current value I HD (Solenoid current value I RL ) to operate with the predetermined target starting current value I TRN unanimous. Conversely, the third embodiment will be described below with reference to a case where the present invention is applied to a control device with feedforward control in which feedforward control is performed to control the holding current value I HD (Solenoid current value I RL ) to start the current value I close to the predetermined target operation TRN .

[0228] Figure 20 is a schematic diagram showing the main part of the solenoid valve driving circuit 632 for controlling the operation of the switching electromagnetic solenoid valve 104 corresponding to the on / off control valve of the present invention, which represent...

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Abstract

A control device for a vehicle on / off control valve having a current control component 386 is provided. The current control component 386 is operable to allow the solenoid current IRL to be set to an operation initiation current value IRN that will initially open / close the control valve during switching of the current supply state of the electromagnetic solenoid 102 The amount of current required to switch from the off state to the on state. The current control component 386 is operable to allow a maintenance current value IHD that is lower than the operation initiation current value IRN after achieving the open state. Therefore, the solenoid current IRL is reduced without affecting the operation of the switching solenoid valve 104 . Therefore, as shown, the wasted current can be reduced to less than that resulting from conventional on / off control, thereby minimizing the power consumption of switching the solenoid valve 104.

Description

technical field [0001] The present invention relates to a technique of controlling an electric current that magnetizes a solenoid of an electromagnetic on / off control valve incorporated in a vehicle. Background technique [0002] An on / off control valve, such as, for example, a three-way valve, which forms a kind of electromagnetic directional control valve and is used in a hydraulic control circuit of a vehicle, has flow passages switched based on flow passage switching control. With such flow channel switching control, the solenoid incorporated in the on / off control valve is in an electromagneticized state (ie, an energized state) or a non-electromagnetic state (ie, a non-energized state). This causes the flow passage of the on / off control valve to be switched in accordance with the respective states of the solenoid. For a solenoid that remains magnetized with such a flow channel switching control, the solenoid generates a magnetic force higher than and against the urging...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/02
CPCF16H61/143F16H61/0251F16H2061/026
Inventor 今村健宫田英树
Owner TOYOTA JIDOSHA KK
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