Abstract:
A control system (50) for a vehicle having first and second wheels (28, 30) is provided that includes a differential apparatus (22) adapted to distribute torque between the first and second wheels (28, 30) and a traction controller (52) for controlling operation of the differential apparatus (22) from vehicle launch up to a predetermined vehicle speed. The traction controller (52) is configured to engage the differential apparatus (22) in a first operating state according to at least one vehicle operating parameter indicative of a low traction operating condition and to further control engagement of the differential apparatus (22) in a second vehicle operating state during the low traction operating condition according to a difference between an actual vehicle yaw rate and a predetermined target vehicle yaw rate. The control system (50) also includes a stability controller (54) for controlling engagement of the differential apparatus (22) at or above the predetermined vehicle speed.
Abstract:
An improved differential gear mechanism is characterized by a lockout mechanism (63, 90, 129) operably associated with a flyweight mechanism (53), or a latch member (119) that cooperates with the flyweight mechanism (53), to retard differentiating action in the differential gear mechanism.
Abstract:
PROBLEM TO BE SOLVED: To provide a connection device with plenum members having all essential shape portions for allowing screwing of all fasteners via a flange portion of the differential connection device into a ring gear at the same time, and to provide its assembling method. SOLUTION: In a connection member 11 which has the plenum members 17 arranged at one axial ends of connection housings 13, 15 and its assembling method, the plenum members 17 having essential shape portions 55, 57, 61, 66 arranged on the circumference are formed between a pair of adjacent fastening holes 18H. Then, the input ring gear R is mounted on the housings 13, 15 of the connection device 11 at a position adjacent to a flange portion 18 through the axial ends opposite to the plenum members 17. The plurality (N) of fasteners 89 are inserted into the fastening holes 18H, respectively, and initial-stage screwing engagement is applied to the input ring gear R. Finally, a fastener driver is used for complete screwing engagement of all fasteners 89 together with the input ring gear R at almost the same time. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a differential gear mechanism of a rocking differential which is simple to structure, low in costs and easy to load. SOLUTION: The differential operates a clutch by a cam structure so as to lock a side gear rotating with a gear case. Cam member's rotation to one way is braked by a fly weight mechanism 51 so as to start lockup. A latch mechanism 63 provided with a simplified U-shaped member including a bottom part 65 and a pair of upright leg parts 71 and 73 is arranged adjacent to the fly weight mechanism 51. A pair of latch members is integrally mounted on the bottom part 65, each of which is arranged so as to be engaged with either of fly weights 53 and 55. The upright leg parts 71 and 73 are respectively provided with a pair of legs 75, which are arranged on both sides of a pinion shaft 15 and connected to a weight 83 placed in the opening on the other side of the fly weight mechanism 51 in the gear case through the rotating shaft.
Abstract:
A locking differential of the type including a clutch pack (31,33) actuated by a cam arrangement (43,45) to lock the side gears (19,21) relative to the gear case (11). Lock-up is initiated by retarding rotation of one of the cam members (45), by means of a flyweight mechanism (51). Disposed adjacent the flyweight mechanism is a latch mechanism (63) which comprises an integral, generally U-shaped member including a bottom portion (65) and a pair of upright leg portions (71,73). The bottom portion defines a pair of integral latch member (67,69), each of which is disposed to engage one of the flyweights (53,55) when the latch mechanism is in its operative position. Each of the upright leg portions includes a pair of individual leg portions (75) disposed on opposite sides of the pinion shaft (15), extending past the axis of rotation (A), and engaging a weight (83) disposed in a window (89) on the opposite side of the gear case (11) from the flyweight mechanism.
Abstract:
An improved differential gear mechanism is characterized by a lockout mechanism ( 129 ) operably associated with a latch member ( 119 ) that cooperates with a flyweight mechanism ( 53 ) to retard differentiating action in the differential gear mechanism. The lockout mechanism ( 129 ) includes a lockout member ( 131 ) positionable, in response to an input signal, in a normal condition and a lockout condition. In the normal condition, the lockout member ( 131 ) permits the latch member ( 119 ) to move freely between a locking position and an unlocking position. In the lockout condition, the lockout member ( 131 ) prevents the latch member ( 119 ) from moving into the locking position.
Abstract:
A control system for a vehicle having first and second wheels is provided that includes a differential apparatus adapted to distribute torque between the first and second wheels and a traction controller for controlling operation of the differential apparatus from vehicle launch up to a predetermined vehicle speed. The traction controller is configured to engage the differential apparatus in a first operating state according to at least one vehicle operating parameter indicative of a low traction operating condition and to further control engagement of the differential apparatus in a second vehicle operating state during the low traction operating condition according to a difference between an actual vehicle yaw rate and a predetermined target vehicle yaw rate. The control system also includes a stability controller for controlling engagement of the differential apparatus at or above the predetermined vehicle speed.