Matches 1 - 50 out of 59 1 2 >
Match Document Document Title
7335124 Vehicle transmission control device  
The invention is directed to a transmission that controls multiple torque generating elements. The transmission control device utilizes two torque generating elements that are connected to an...
7276015 Device for engine-driven goods vehicle  
Method and device for providing, in an engine-driven goods vehicle, at least two driving wheels ( 9, 10, 51, 52 ) and at least one differential ( 5, 6, 45, 46, 47 ) arranged between the driving...
7195579 Automated inter-axle differential locking system actuation enhancement  
An actuation enhancement for an automated vehicle inter-axle differential (IAD) locking system. The vehicle having an engine and a tandem drive axle. The IAD actuation enhancement locking system...
7127343 Slip control device of four-wheel-drive vehicle  
A temporary indicated torque is obtained by taking a conventional dead zone area for a first slip control area, and the value proportional to the slip quantity for a maximum value, this temporary...
7107135 Auxiliary gearset shift progression command generator for a swap-shift automatic transmission  
A target command generator for use in a control system for an automatic transmission having a simple planetary gearset in series with a multiple-ratio gearset, the target command generator...
6878085 Power distribution control apparatus and control method  
In a differential limiting torque control section, a target differential rotation speed between front and rear drive shafts is established according to a dial position inputted by a driver of a...
6873896 Drive-force distribution controller and drive-force distribution method for four-wheel-drive vehicle  
A drive-force distribution controller controls a drive-force transmission apparatus of a vehicle in order to control transmission of drive force to rear wheels or front wheels of the vehicle in...
6871128 Speed change control method and speed change controller  
A speed change control method of controlling a speed change ratio of a continuously variable transmission mechanism including a traction continuously variable transmission, includes: estimating a...
6623388 System for adjusting the voltage of a wrapped component of an infinitely variable speed transmission  
A system for adjusting the tension of a continuous part of a continuously variable transmissions; which is adjustable preferably with respect to its transmission ratio, the continuously variable...
6606549 For a four-wheel-drive vehicle  
A drive-force distribution controller for a four-wheel-drive vehicle in which drive force produced by an engine is transmitted directly to front or rear wheels and is transmitted to the remaining...
6580994 Driving force controlling apparatus and method for four-wheel drive vehicle  
In driving force controlling apparatus and method for a four-wheel drive vehicle, a command is outputted to a front-and-rear wheel driving force distribution control system to reduce a clutch...
6498974 Method for controlling a transfer case which utilizes a proportional and an integral control component  
A transfer case control system or apparatus 10 is provided for use on a four-wheel drive vehicle of the type having a transfer case 32 , a front driveshaft 22 and a rear driveshaft 26 ....
6389345 Method and apparatus for determining a cross slope of a surface  
The present invention provides a method and apparatus for determining the cross slope created by a work implement on a work machine operating in an articulated or non-articulated manner. The method...
6154700 Integrated transmission and multiple speed axle shifting apparatus  
An integrated system for automatically controlling the operation of both an automated mechanical transmission and a multiple speed axle assembly in a vehicle drive train assembly includes a...
6148691 System for shifting a multiple speed axle for an automated mechanical transmission  
A system for controlling the operation of a multiple speed axle connected to an automated transmission system is disclosed. The system includes an actuation device that cooperates with a processing...
6105702 Adaptive vehicle drive method for extreme operating conditions  
An adaptive torque control and distribution system for a motor vehicle having a transfer case, primary driveline and drive wheels and secondary driveline and drive wheels for operation in extreme...
5980415 Adaptive transfer case with EM clutch and dog clutch for 4WD lock up  
An adaptive torque control and distribution system for a motor vehicle having a transfer case, primary driveline and drive wheels and secondary driveline and drive wheels for operation in extreme...
5839084 Driving-torque control system for four-wheel-drive vehicle  
A driving-torque control system for a four-wheel-drive vehicle includes a transfer clutch employed in a transfer of the four-wheel-drive vehicle for varying a distribution ratio of driving torque...
5813939 Vehicle drive system including a torque splitter  
In a vehicle drive system having a torque split arrangement, it is difficult to have all the rotating parts of the system to be properly balanced. In particular, when a rotational speed difference...
5802489 Front wheel drive engagement control system for agricultural vehicles  
A control system for engaging, disengaging and re-engaging a front wheel drive in an agricultural vehicle includes a control circuit configured to receive signals representative of vehicle...
5746677 Vehicle transmission system  
A subpump assists a main pump for feeding hydraulic oil into a vehicle transmission system so as to control the distribution of the drive force transmitted to front and rear wheels. A motor for...
5709627 Differential unit with means for mixing air into the hydraulic actuator  
A differential unit having a speed-sensitive-type differential limiting function is capable of moderating the differential limiting force to maintain the controllability and stability of a vehicle....
5688202 Powershift transfer case  
A power transfer system is disclosed for a four-wheel drive vehicle operable for permitting a vehicle operator to select between various full-time and part-time four-wheel drive modes. The power...
5558590 Geared steering device for crawler vehicle and control unit therefor  
A geared steering device (30) selectively operates rightside and leftside driving mechanisms (2,3) of a crawler vehicle (1) for more efficient operation of the crawler vehicle. The geared steering...
5522776 Electronic neutral tow engagement for an automatic four-wheel-drive vehicle  
An automatic four-wheel-drive vehicle having a multiple-ratio transmission with a torque output shaft connected drivably to a rear driving axle and a transfer gear box having a front drive shaft...
5490063 Control method/system including determination of an updated value indicative of gross combination weight of vehicles  
A control system/method for determining vehicular gross combined weight (GCW) is provided. GCW is determined immediately after upshifts of a transmission (10) and requires only input signals...
5437586 Restrictive control system for differential  
A restrictive control system for a differential which drives both drive axles at the same time but allows them to turn at different speeds during turning. The system variably generates a...
5373912 Control system for restrictively controlling electromagnetically controlled differential  
A differential control system for restrictively controlling a differential, which has electromagnetically controlled clutches disposed between differentially driven shafts, is electromagnetically...
5289895 Control system for vehicle with differential restricting device  
A control system for a four-wheel drive vehicle includes a center differential provided between a front shaft and a rear shaft. The control system also includes a device for restricting a...
5270930 Four wheel driving vehicle of a front/rear wheel differential operation limiting type  
A four wheel driving vehicle includes a center differential gear wherein a differential operation limit is achieved by a wet hydraulic multiple disk clutch and is improved in running performance,...
5259476 Torque distribution control system for a four-wheel drive motor vehicle  
An ideal lateral acceleration is calculated based on vehicle speed and steering angle, and an actual lateral acceleration is calculated based on a lateral acceleration detected by a lateral G...
5125490 Center differential lock mechanism controlling device  
In a four wheel drive vehicle having an anti-lock brake system in combination with a front differential gear, a rear differential gear and a center differential gear, a center differential lock...
5033329 System for controlling distribution of torque to left and right wheels of a motor vehicle  
A differential is provided between a left and a right wheels of a motor vehicle for distributing an output torque of a transmission to the left and the right wheels. A fluid operated multiple-disk...
4987967 Method of controlling a four wheel drive vehicle  
A controlling method of a four wheel drive vehicle includes a detecting step and a controlling step. The detecting step detects difference in speeds between a front driving shaft and a rear driving...
4982809 Method and apparatus for controlling 4-wheel drive system for a motor vehicle  
A method and an apparatus for controlling a 4-wheel drive system of a motor vehicle having front wheels and rear wheels and a power transmission. The 4-wheel drive system includes a differential...
4953654 Vehicular differential limiting torque control system  
A differential limiting torque control system for a vehicle includes a differential limiting clutch provided in a differential, a sensing section including sensors such as an accelerator position...
4872373 Differential control device  
A differential control device for controlling the differential of a differential gear having a limited slip differential includes a sensor for detecting drive torque, a controller for receiving the...
4872372 Controller for lockable differential transmission  
For improving the load-change behavior of a motor vehicle when driving through a curve, the motor vehicle is provided with a lockable differential continuously activatable in its locking action....
4825368 Device for controlling vehicle four wheel drive front/rear coupling device by learning effective front/rear vehicle wheels radius discrepancy, and method of operation thereof  
In a four wheel drive vehicle having two front wheels and two rear wheels driven from an engine via a central differential gear and a front/rear coupling device for selectively locking up the...
4787471 Power transmitting system for a four-wheel drive vehicle  
A power transmitting system for a four-wheel drive vehicle having an automatic transmission has a central differential operatively connected to an output member of the automatic transmission for...
4784236 Four-wheel drive vehicle  
A four-wheel drive vehicle has a permanently driven axle. A planetary gear set and viscous clutch are located in the power train leading to the second axle. The annular gear of the planetary gear...
4754836 Control method and device for automotive vehicle four wheel drive transmission suppressing front/rear differential action when automatic main transmission is in intermediate hold range  
A full time four wheel drive transmisson system for a vehicle includes a gear transmission mechanism, driven by an engine, which is automatically controlled to operate in any of several forward...
4751856 Device for controlling 4wd vehicle central differential restriction device according to vehicle road speed and engine load, and method of operation thereof  
In a four wheel drive vehicle, a central differential device receives rotational power from an engine and provides it to the combination of the front wheels of the vehicle and also to the...
4727966 Differential with differential motion limiting mechanism  
A differential capable of distributing a torque of the input shaft to the two output shaft thereof and equipped with a differential motion limiting mechanism. The differential comprises a...
4700820 Torque transfer device and engageable, shiftable clutch in an all-wheel drive arrangement for a motor vehicle  
A multiple-disk visco-clutch is arranged in the drive line of the front axle and the rear axle of a four wheel-drive motor vehicle. In order to prevent an overheating of the multiple-disk...
4679463 Limited slip differential  
A limited slip differential comprises a pair of friction clutches interposed between a pair of pressure rings and a differential casing. The friction clutches are urged toward an engaged condition...
4671373 Vehicle with lockable differential  
A locking-type differential (5; I, II) is automatically engaged to locked position upon sensing of certain vehicle operating conditions, and unlocked upon sensing other vehicle operating...
4644823 Differential gear  
A differential gear for motor vehicles with four bevel gears in meshing engagement, of which one each is coordinated to a respective one of the two axle output shafts; a lamellae package is...
4407387 Control system for split axle drive mechanism  
A part-time four-wheel drive vehicle has a transfer case and a split axle drive mechanism for the selectively driving two vehicle wheels. The split axle drive mechanism has a clutch associated with...
4347760 Locking differential control system  
A tractor locking differential (12, 18) is controlled by a solenoid operated hydraulic valve (34). The solenoid valve is in turn controlled by a logic circuit (36) which is responsive to signals...
Matches 1 - 50 out of 59 1 2 >