JPH0217426U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram of a 4WD vehicle drive system showing a basic embodiment of the present invention, FIG. 2 is a similar configuration diagram according to the second embodiment, and FIG. 3 is a similar configuration diagram according to the third embodiment. Figure 4 is a cross-sectional view of the fluid pressure transmission clutch.
Fig. 5 is a control circuit diagram of the basic embodiment, and Fig. 6 is a control circuit diagram of the basic embodiment.
Control circuit diagram of the embodiment, FIG. 7 is a control circuit diagram of the third embodiment. In addition, in the drawing, 6 is a propulsion shaft, 7 and 8 are gears, and 10
11 is a case member, 12 is a differential gear on the slave drive wheel side.
is the outer plate, 13 is the inner plate,
15 is an output shaft, 21 is a cylinder member, 23 is a piston member, 30 is a speed increaser, 31, 34, 35, 3
6 is a speed increasing gear, 32 is a direct coupling clutch, 33 is a speed increasing clutch, 40 is a speed increasing gear, 41, 42, 43
, 44, 47, and 48 are speed increasing gears, 45 is a left clutch, 46 is a right clutch, and 71 is a control device.

Claims (1)

[Claims for Utility Model Registration] 1. A system comprising a main drive wheel and a sub-drive wheel, and transmits power from a transmission on the power source side to the main drive wheel and sub-drive wheels through front and rear differentials, respectively. In front and rear wheel drive vehicles, a differential device on the driven drive wheel side is provided integrally with a case member to which rotation is transmitted from the propulsion shaft via a gear set within the case member in the rotational direction. a plurality of outer plates, a plurality of inner plates that are provided integrally in the rotational direction on each end of the left and right drive shafts extending into the case member and arranged alternately with the outer plates; The present invention is characterized by comprising a fluid pressure transmission clutch consisting of a fluid filled and sealed between outer plates, and further comprising a control device for controlling the fastening force of the fluid pressure transmission clutch according to the motion state of the vehicle. Vehicle front and rear wheel drive system. 2 Front and rear wheels that are equipped with a main drive wheel and a sub-drive wheel, and transmit power from a transmission on the power source side to the left and right drive shafts of the main drive wheel and sub-drive wheels via front and rear differentials, respectively. In a driven vehicle, the differential device on the driven drive wheel side is composed of a fluid pressure transmission clutch, and a control device is provided to control the engagement force of this fluid pressure transmission clutch according to the motion state of the vehicle. A front and rear wheel drive device for a vehicle, characterized in that a speed changeable speed increaser is provided in a power transmission path to a wheel side differential device. 3 Front and rear wheels that are equipped with a main drive wheel and a sub-drive wheel, and transmit power from the transmission on the power source side to the left and right drive shafts of the main drive wheel and the sub-drive wheel via respective front and rear differentials. In the driving vehicle, the differential device on the driven wheel side is configured with a fluid pressure transmission clutch, and a control device is provided to control the engagement force of the fluid pressure transmission clutch according to the motion state of the vehicle. A front and rear wheel drive system for a vehicle, characterized in that a variable speed increaser that can transmit power without using a differential is provided between a propulsion shaft and a driven drive wheel.