Four-wheel-drive vehicle and method of controlling four-wheel-drive vehicle

一种四轮驱动、副驱动轮的技术，应用在道路车辆驱动控制系统、控制装置、流体驱动离合器等方向，能够解决摩擦离合器成本及尺寸增大等问题，达到降低成本及尺寸的效果

Active Publication Date: 2019-03-05
JTEKT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The greater the number of clutch plates, the greater the maximum value of the driving force that can be transmitted to the auxiliary drive wheels, but if the number of clutch plates is increased, the cost and size of the friction clutch will increase

Method used

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  • Four-wheel-drive vehicle and method of controlling four-wheel-drive vehicle
  • Four-wheel-drive vehicle and method of controlling four-wheel-drive vehicle
  • Four-wheel-drive vehicle and method of controlling four-wheel-drive vehicle

Examples

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Embodiment Construction

[0028] Regarding the embodiment of the present invention, refer to Figures 1 to 7C Be explained.

[0029] figure 1 It is a configuration diagram schematically showing a configuration example of a four-wheel drive vehicle according to an embodiment of the present invention. The four-wheel drive vehicle 100 is equipped with: an engine 102 as a drive source, which generates driving force for traveling; a transmission 103; a pair of left and right front wheels 104L, 104R as main drive wheels, and a pair of left and right rear wheels 105L as auxiliary drive wheels. , 105R; the driving force transmission system 101, which transmits the driving force of the engine 102 to the front wheels 104L, 104R and the rear wheels 105L, 105R; the hydraulic unit 8; and the control device 9, which controls the hydraulic unit 8. The engine 102 generates driving force in accordance with the amount of depression of the accelerator pedal (accelerator pedal operation amount) that is depressed by the ...

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PUM

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Abstract

The invention provides a four-wheel-drive vehicle and a method of controlling four-wheel-drive vehicle. A four-wheel-drive vehicle (100) includes: a pump (801) that is actuated by an electric motor (80); a friction clutch (53) that has a plurality of clutch plates that are pressed by a piston (50) that is movable by working oil discharged from the pump (801); a control device (9) that controls theelectric motor (80); front wheels (104, 104R), to which a drive force of an engine (102) is always transferred; and rear wheels (105, 105R), to which the drive force of the engine (102) is transferred in accordance with the fastening force of the friction clutch (53). When it is determined that the vehicle is in a high fastening force-requiring state in which it is necessary for the friction clutch (53) to transfer a large drive force temporarily, the control device (9) causes the electric motor to output torque that is larger than torque that the electric motor (80) can continuously output.

Description

technical field [0001] The invention relates to a four-wheel drive vehicle and a control method for the four-wheel drive vehicle. Background technique [0002] Conventionally, in a four-wheel drive vehicle including main driving wheels that always receive transmission of driving force from a driving source and sub-driving wheels that receive transmission of driving force from a driving source when necessary depending on the state of the vehicle, the following configurations are known: : Equipped with a pump operated by the torque of the motor, a piston moved by the pressure of the working fluid discharged from the pump, a friction clutch having a plurality of clutch plates pressed by the piston, and a control device for controlling the motor. The driving wheels transmit driving force. For example, refer to JP-A-2017-114432. [0003] The friction clutch described in Japanese Patent Application Laid-Open No. 2017-114432 has a plurality of outer clutch plates connected to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K17/34B60K17/02B60K23/08B60K23/04
CPCB60K17/02B60K17/34B60K23/04B60K23/0808B60K2023/0833B60K2023/0841B60K2023/0858F16D48/06F16D2500/1107F16D2500/3115F16D2500/3144F16D2500/3108F16D2500/70404F16D48/08F16D25/0638B60K17/344B60Y2300/18025F16D11/14F16D13/52F16D21/08F16D2011/002F16D2500/10425F16D2500/1045F16D2500/3118F16D2500/3124F16D2500/5075F16D2500/50825F16D2500/70408
Inventor 野津知宏
Owner JTEKT CORP
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