PROBLEM TO BE SOLVED: To provide a maximum road surface transmission driving force detector adapted to a change in a condition of a travel road surface of a vehicle and preventing driven wheels from idle running when the vehicle starts.

SOLUTION: When the vehicle stops, the driving force is applied to one of the selected driven wheels by a motor and increased at a determined setting increas...

PROBLEM TO BE SOLVED: To provide a motor torque controller of a vehicle in which desired deceleration of a vehicle can be attained by eliminating an influence of driving system inertia at the transient time of acceleration/deceleration of the vehicle without using a sensor for detecting the driving force.

SOLUTION: In a hybrid vehicle having at least one motor generator serving as one power...

PROBLEM TO BE SOLVED: To provide a battery power compensation controller of a hybrid vehicle in which a feeling of physical disorder is prevented from being given to an operator due to running out of the vehicle while attaining overcharge/overdischarge power compensation at the time of overcharge/overdischarge power compensation of a battery.

SOLUTION: In a hybrid vehicle having a power sou...

PROBLEM TO BE SOLVED: To provide a battery power compensation controller of a vehicle in which overcharge/overdischarge power of a battery can be compensated in the entire speed change ratio region, and saturation of motor-generator torque can be prevented surely.

SOLUTION: In a hybrid vehicle having a power source of at least two motor-generators MG1 and MG2 employing a battery 4 as a powe...

PROBLEM TO BE SOLVED: To provide a controller for a hybrid vehicle which secures responsibility at transition to a fixed gear ratio mode from a stepless gear ratio mode.

SOLUTION: In the controller for the hybrid vehicle, a rapid transition control means is provided. When the vehicle is changed to the fixed gear ratio mode which fixes either of a first or a second motor generator from the s...

PROBLEM TO BE SOLVED: To provide a laser beam machining method capable of cutting a workpiece at high precision.

SOLUTION: In the laser beam machining method, the inside of the plate-like workpiece 1 is irradiated with a laser beam L by placing the focal point P inside the plate-like workpiece 1. At first, a first modification zone 71 to be the starting point of cutting is formed along a fi...

PROBLEM TO BE SOLVED: To reduces overshooting of rolling of a vehicle and vibration generated with delay behind steering and to reduce the possibility that a driver has a sense of incompatibility or a sense of uneasiness by controlling braking/driving power differences between right and left wheels so that the rolling of the vehicle generated behind steering is reduced.

SOLUTION: The actual...

PROBLEM TO BE SOLVED: To provide a differential device for lessening the minimum cornering radius of a four-wheel automobile.

SOLUTION: The differential device 1 is equipped with two output elements coupled with auxiliary driving wheels 50L and 50R independently, a differential motor 40 to generate a differential motion between the two output elements, a steering angle sensor 62 to measure ...

PROBLEM TO BE SOLVED: To provide an inter-vehicle distance controlling device not giving a sense of incompatibility to the driver etc. of a vehicle about the deceleration during the inter-vehicle distance control.

SOLUTION: The inter-vehicle distance controlling device is to control the distance from the vehicle concerned to the foregoing vehicle by controlling running of the vehicle concer...

PROBLEM TO BE SOLVED: To provide a device capable of preventing overspeeding of a motor/generator in time of deceleration, in a state where an engine clutch is released and where the motor/generators are set in non-control.

SOLUTION: When a lever OR1 is turned about large output Out (a point D) having large inertia as shown in Figure to allow the overspeed of the motor/generator MG2 in time...

PROBLEM TO BE SOLVED: To quickly and precisely detect abnormality of a yaw rate sensor by performing continuous monitoring even if a vehicle is in any motion condition.

SOLUTION: A failure diagnostic device 1 of the yaw rate sensor determines, based on force acting on each wheel, whether the vehicle is in a linear advancing state, steady turning state, or non-steady turning state. When the ...

PROBLEM TO BE SOLVED: To provide a vehicle operation supporting device capable of preventing avoidance support and deceleration interference to avoid the contact with an obstacle from being uniformly suppressed when a turn indicator is operated.

SOLUTION: The vehicle operation supporting device to support contact avoidance from an obstacle comprises a radar device Sa, an avoidance operation...

PROBLEM TO BE SOLVED: To provide an electric power steering device capable of miniaturizing a supporting part of a drive gear, reducing degradation of the engagement state by the engagement reaction force, and reducing sounding by the engagement reaction force.

SOLUTION: The electric power steering device comprises a worm 3 which is connected in an interlocking manner to an output shaft 1a ...

PROBLEM TO BE SOLVED: To avoid a delay of the timing at which own vehicle existing in front of an intersection is acknowledged by a right turning vehicle on the counter-lane, the delay being caused by the own vehicle lying in the shade of any other vehicle on another lane running in the same direction.

SOLUTION: When the own vehicle has an adjacent vehicle on the right-hand lane in the same...

PROBLEM TO BE SOLVED: To provide a device to output motive power from an internal combustion engine to a drive shaft by changing its speed by using two transmissions devised capable of outputting the motive power from the internal combustion engine to the drive shaft by smoothly changing its speed and capable of using an electric motor small in physique.

SOLUTION: The first transmission 50 ...

PROBLEM TO BE SOLVED: To suppress a slip of a hybrid vehicle capable of traveling with the power from an engine and the power from a motor when a slip due to idling of a driving wheel and to outputs the driving force that a driver requires without requiring discharge using excessive electric power of a battery.

SOLUTION: When a slip is caused owing to idling of one driving wheel during a mo...

PROBLEM TO BE SOLVED: To provide a driving device for a vehicle that can be made small-sized or improve fuel consumption and to provide a control device which can further improve the fuel consumption by regeneration.

SOLUTION: Provided is the driving device which has a transmission mechanism 10 switched between a non-step speed change state and a stepped speed change state by being equipped...

PROBLEM TO BE SOLVED: To provide a deceleration control device for a vehicle capable of obtaining suitable deceleration when a preceding vehicle is decelerated in the device for performing deceleration control in response to deceleration intention of a driver in order to make a position relationship with the preceding vehicle to the proper state.

SOLUTION: In the deceleration control device...

PROBLEM TO BE SOLVED: To measure a travelling resistance of a hybrid vehicle more accurately.

SOLUTION: In response to a coasting drive instruction for measurement of a travelling resistance of the hybrid vehicle, a change of a gear position in a transmission 60 is prohibited and both an engine 22 and a motor MG1 are stopped. A canceling torque is calculated, which cancels out a torque appl...

PROBLEM TO BE SOLVED: To improve brake responsiveness at the time of hard braking when both regenerative braking and frictional braking are carried out.

SOLUTION: When requested braking force is larger than a predetermined value, both the regenerative braking and the frictional braking using brake liquid pressure from a pump device are carried out. When the hard braking is determined to be ...