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7624832 |
Front and rear drive power distribution control device for vehicle
With a drive power distribution control section, limited differential torque correction value TLSDS is estimated and calculated by a limited differential torque correction value calculating section...
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7610981 |
Driving mode switching apparatus for four-wheel-drive vehicle
A driving mode switching apparatus for a four-wheel-drive vehicle, which switches driving modes of the four-wheel drive vehicle, includes a motor, a reduction mechanism being transmitted with a...
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7610980 |
Drive force control method for four-wheel drive vehicle
In a drive force control method for a four-wheel drive vehicle using an estimated drive torque for the control, a delay element is added to a value for the estimated drive torque at the trailing...
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7600597 |
Travel vehicle and travel control method for the travel vehicle
The height of the center of gravity of a stacker crane is determined in consideration of a height position of an elevation frame and the inertial force is determined from the travel acceleration...
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7597168 |
Low engine speed steering performance
A hydraulic system for a work vehicle including a manifold assembly configured to prioritize hydraulic fluid flow to priority functions over a wide range of engine speeds.
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7594560 |
Four-wheel drive vehicle
A vehicle includes a sensor sensing external temperature, a 2WD/4WD switch operated to input an instruction to switch a two-wheel drive state and a four-wheel drive state, a transfer switching...
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7591332 |
Integrated heat exchanger and engine mount for a snowmobile
An integrated heat exchanger and engine mount for a snowmobile that reinforces the snowmobile chassis is disclosed. The heat exchanger is formed with an internal passage through which a vehicle...
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7581612 |
Drive force distribution device and method for distributing drive force
An IG-off-timer measures the time t_off from when an engine is stopped, or an ignition is turned off. An ECU sequentially memorizes an estimated temperature of each of heat generating portions as a...
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7553250 |
Drive train of an all-wheel drive vehicle
The drive train of an all-wheel drive vehicle comprises a transfer case that is connected to the motor block, a driven front axle, a driven rear axle, drive shafts and a control device. To vary the...
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7549497 |
Four-wheel drive vehicle running normally and with object towed thereby
A vehicle includes a wheel speed sensor sensing a vehicle speed V, a 2WD/4WD switch operative to input an instruction to switch between a two-wheel driving state and a four-wheel driving state, a...
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7540349 |
Transaxle apparatus for four-wheel drive vehicle
A transaxle apparatus for a four-wheel drive vehicle, comprises: a hydraulic pump; a housing; a hydraulic motor disposed in the housing so as to be driven in response to fluid from the hydraulic...
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7530420 |
Modular vehicle drivetrain
A vehicle drivetrain ( 110 ) includes an engine ( 122 ) with a vertical crankshaft ( 124 ), a first transmission ( 126 ) below the engine and driven by the crankshaft, a second transmission ( 128 )...
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7516998 |
Seat conversion vehicle
Some embodiments of the invention include a vehicle having a chassis and an engine supported by the chassis, the engine coupled to a drive train useful for propelling the vehicle. The vehicle may...
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7516006 |
Control method for four-wheel drive vehicle
A drive force control method for a four-wheel drive vehicle including a torque distributing mechanism capable of changing a drive force distribution ratio between front and rear wheels and a drive...
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7506740 |
Power transmission device with clutch control system
A power transmission device includes a rotary input member receiving drive torque from a source of torque, a rotary output member for providing drive torque to an output device and a torque...
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7490690 |
Control device for front-and-rear wheel drive vehicle
A control device is provided for electrically controlling a drive power transmission device arranged on a driving power transmission path of a front-and rear wheel drive vehicle thereby to switch...
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7458437 |
Arrangement in a four-wheel drive motor vehicle
In a four-wheel drive motor vehicle with a primary drive axle and a secondary drive axle, at least one secondary drive axle coupling of the limited slip type is provided in the powertrain between...
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7455142 |
Scaling of side-to-side torque bias to improve cornering in a programmable four wheel drive system
The present invention provides a method for improving cornering performance. From a given vehicle speed and lateral acceleration, in instances of a decrease in drive torque, individual wheel torque...
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7440834 |
Drive force distribution system for four wheel independent drive vehicle
A drive force distribution system for a four wheel independent drive vehicle is configured to suppress changes in longitudinal and lateral accelerations and change in yaw moment about the center of...
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7425006 |
Live twist beam axle assembly
A drive axle and suspension assembly for a vehicle having a power source and wheels including a torsionally compliant twist beam suspension and a driveline assembly. The twist beam includes a twist...
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7421324 |
Drive system switching control method
In a drive system switching control method of an automotive four-wheeled vehicle for switching two drive systems comprising a two-wheel drive and a four-wheel drive. The method has a step of...
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7399250 |
All-wheel drive train
In an all-wheel drive train for a motor vehicle wherein the drive torque of the engine of the motor vehicle is transmitted from the transmission output shaft partially to the rear axle and...
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7377351 |
Power train for a utility vehicle
A power train for a vehicle includes a gearbox with an input shaft and an output shaft and is configured such that the input shaft drives the output shaft at a single speed ratio in a first...
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7377342 |
Transmission for four-wheel drive vehicle and four-wheel drive vehicle
Disclosed is a mechanism of a four-wheel drive vehicle, for enabling an engine and a transmission to be arranged compact by using an empty space within a body frame of the vehicle. The transmission...
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7377195 |
Power take-off unit with worm gearset
A power take-off unit for a transaxle is provided with a unique double enveloping worm/worm gear transmission which has a ratio of the number of gear teeth on the worm gear to the number of threads...
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7374012 |
Operation control system for small-sized vehicle
An operation control system for a small-sized vehicle is capable of reducing an electric power consumption of a battery used for a power steering apparatus. The operation control system includes a...
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7357210 |
Vehicle power transmission system
A vehicle power transmission system comprises: a prime mover mounted on a vehicle body frame; a first axle and a first transaxle for driving the first axle disposed at one of front and rear...
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7353898 |
Integrated heat exchanger and engine mount for a snowmobile
An integrated heat exchanger and engine mount for a snowmobile that reinforces the snowmobile chassis is disclosed. The heat exchanger is formed with an internal passage through which a vehicle...
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7350603 |
Hybrid drive unit and vehicle mounted therewith
A hybrid drive unit includes a hybrid mechanism having at least one electric motor and a transfer that distributes driving force to front and rear wheels. The electric motor and the transfer are...
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7343998 |
All-terrain vehicle with subtransmission detachably mounted to the engine
An all-terrain vehicle (ATV) has a subtransmission detachably fastened to an engine casing. The engine crankshaft includes a drive pulley connected via a belt to a driven pulley in the...
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7337053 |
Stability-enhanced traction control with electrically controlled center coupler
A control system for a vehicle having first and second axles is provided that includes a coupling apparatus adapted to distribute torque between the first and second axles and a traction controller...
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7316283 |
Automatic transmission controller for hybrid vehicle
An automatic transmission controller for a hybrid vehicle of the present invention is used for the hybrid vehicle being a four-wheel drive vehicle and including an engine and a generator motor on a...
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7311275 |
Wheel assembly for irrigation system
Mobile towers of an irrigation system have drive wheel assemblies that propel the towers along the ground. At least certain of the wheel assemblies may comprise dual wheels that share a common axis...
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7293623 |
Assembly of a wheelchair and a reclining cycle
An assembly comprising a wheelchair and a reclining cycle part which are connectible to each other with the aid of a coupling, the reclining cycle part comprising a wheel and at least one pedal...
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7264078 |
Calibration method for inter-axle differential control system
A vehicle includes steerable front wheels, an interaxle differential for transmitting torque from an engine to the front wheels and to rear wheels. The differential includes a controllable clutch...
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7243753 |
Carrier vehicle for drilling or rockbolting machine
The invention relates to drilling or rockbolting machines, for the execution of underground works, in particular in mining operations. The carrier vehicle comprises a chassis and four wheels, all...
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7231848 |
Transfer case with dual chain transfer mechanism
A transfer case for use in a motor vehicle to selectively transfer drive torque from a powertrain to first and second pairs of wheels. The transfer case includes an input shaft driven by the...
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7216943 |
Hybrid vehicle
A hybrid vehicle is capable of performing regenerative operations of generator-motors disposed adjacently to front wheels and/or rear wheels of the vehicle so as to achieve efficient conversion of...
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7201247 |
All wheel drive utility vehicle with bogey beam suspension
A utility vehicle that has a bogey beam suspension for the front steered wheels is also provided with all wheel drive by mounting a drive shaft within the bogey beam so that power can be furnished...
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7134517 |
Dual electric motor four wheel drive personnel carrier
Described is a battery powered, four-wheel, all-terrain vehicle, with independently operable, variable speed, bi-directional electric motors, one of which may selectively used to drive the front...
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7111702 |
Steering angle control of independent rear clutches in a four-wheel drive vehicle
A method and apparatus for a four-wheel drive motor vehicle provides improved cornering by disengaging drive torque to the inside rear wheel during significant steering maneuvers. The apparatus...
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7083539 |
Torque distributing drive axle assembly
A drive axle assembly includes first and second axleshafts connected to a pair of wheels and a drive mechanism operable to selectively couple a driven input shaft to the axleshafts. The drive...
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7077222 |
Transaxle apparatus and four-wheel driving working vehicle using the apparatus
An articulate vehicle has first and second frames, which are coupled to each other at proximal ends thereof with respect to the vehicle through a coupling part so as to be relatively rotatable...
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7062984 |
Vehicle powertrain with two-wheel and four-wheel drive ratios
A vehicle powertrain incorporates a planetary gearset which is coupled with a front wheel drive mechanism and a rear wheel drive mechanism. The planetary gearset is controlled by two...
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7059992 |
Power transfer assembly for four-wheel drive vehicle
A power transfer assembly for a four-wheel drive vehicle includes first and second output shafts and a drive mechanism operable to selectively transfer drive torque from a driven input shaft to the...
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6971371 |
Air-fuel mixing and delivery apparatus for an internal combustion engine
An air-fuel mixing and delivery apparatus for an internal combustion engine is situated to be shielded from exposure to water or mud during travel of a vehicle, to protect fuel system components...
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6962226 |
Vehicular two-wheel drive and four-wheel drive switching system
To provide a vehicular two-wheel drive and four-wheel drive switching system the power consumption of which can be reduced. A vehicular two-wheel drive and four-wheel drive switching system is...
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6942592 |
All wheel drive/four wheel drive transfer case with different front and rear axle ratios
A drivetrain for a vehicle includes front and rear axles and a transfer case including two planetary gear sets and four clutches. The first member of the first planetary gear set is continuously...
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6935452 |
Two-wheel/four-wheel drive switching device for vehicle
The two-wheel/four-wheel drive switching device including a switching unit provided in either a power transmitting mechanism interposed between an engine and front wheels or a power transmitting...
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6926634 |
All-wheel drive transfer case with different front and rear axle ratios
A transfer case is provided for a vehicle having front and rear axles. The transfer case includes a planetary gear set with first, second and third members. The first member is continuously...
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