PROBLEM TO BE SOLVED: To provide a vehicle drive control system which can attain both of vibration control and improvement in fuel efficiency.

SOLUTION: The vehicle drive control system 10 is constituted by a car body 12, an axle 30, tires 20, 21, and a control part 100. An engine 40 and rotation electrical machinery 50 are mounted on the car body 12. The axle 30 is supported to the car bod...

PROBLEM TO BE SOLVED: To provide a multi-cylinder internal combustion engine easily receiving an influence on operation according to a desirable operation mode.

SOLUTION: In the multi-cylinder internal combustion engine, an injector means and an ignition means are controlled so as to adjust an enthalpy value of exhaust gas generated by each cylinder independent of the other cylinder.

CO...

PROBLEM TO BE SOLVED: To provide a differential device enabling reduction in the number of parts and cost.

SOLUTION: This differential device 1 has an input member 3 for inputting driving torque, a differential member 5 supported by the input member 3 and capable of revolving and rotating, a pair of relatively rotatable output members 7 and 9 connected to the differential member 5 and distr...

PROBLEM TO BE SOLVED: To provide a link plate which has an improved fatigue strength by exerting a sufficient residual compression stress on the periphery of a pin hole.

SOLUTION: The link plate 100 for a roller chain is provided with the round pin hole 110 in the front and rear of a chain in the travelling direction. A circular groove 120 is carved on the periphery of the pin hole 110 in a...

PROBLEM TO BE SOLVED: To provide a control device of an automatic transmission capable of preventing generation of an excessive heat load in a frictional engaging element, when a change request to the high vehicle speed side of a shift line is generated.

SOLUTION: A transmission ECU calculates a maximum rotating speed and a rotational gradient of a motor in shifting (Step S11). When there i...

PROBLEM TO BE SOLVED: To restrain a shift shock when switched to a down-shift in an up-shift.

SOLUTION: This invention is a shift controller of a continuously variable transmission for controlling the actual gear ratio so as to coincide with the target gear ratio calculated based on the arrival gear ratio, by continuously setting the arrival gear ratio in response to an operation condition,...

PROBLEM TO BE SOLVED: To provide a transmission synchronizing device into which a proper amount of lubricating oil is supplied.

SOLUTION: The transmission synchronizing device comprises a synchronizer hub 12 integrated with a main shaft 22 as a rotating shaft, a synchronizer sleeve 14 slidably fitted to the outer periphery of the synchronizer hub 12, and a synchronizer ring 18 to be pushed ...

PROBLEM TO BE SOLVED: To provide a control device for a vehicular power transmission device, enabling to suitably suppress the occurrence of shift shock.

SOLUTION: The control device for the vehicular power transmission device performs shift control to stepwise change the total gear ratio of a transmission 30 which has a first shift part 16 and a second shift part 20 in series to each other...

PROBLEM TO BE SOLVED: To provide a vehicle integrated control device for improving fuel economy performance by changing a shift-up threshold value for a speed limiting function when effective, to enlarge a region where a high gear advantageous for fuel economy performance is used for travel.

SOLUTION: A required output adjustment means 102 makes an adjustment between required output based o...

PROBLEM TO BE SOLVED: To provide a vehicular gear transmission for actualizing stable supply of lubricating oil to all gears even when the lubricating oil is shaken in a casing during sudden start or sudden acceleration.

SOLUTION: The vehicular gear transmission 1 comprises the casing 2 filled with the lubricating oil, a shaft member (output shaft 4) journaled to the casing 2 for transmitti...

PROBLEM TO BE SOLVED: To provide a differential device improved so as to restrain the occurrence of seizure and abnormal abrasion of a pinion bearing on the vehicle body front side, even in a state of lifting the vehicle body front side upward.

SOLUTION: An oil transfer passage 14 for flowing lubricating oil 5 is arranged in a differential case 1. An oil tank 13 connected to the differentia...

PROBLEM TO BE SOLVED: To provide a differential device improved so as to restrain the occurrence of seizure and abnormal abrasion of a pinion bearing even in a state of lifting the vehicle body front side upward.

SOLUTION: An inside space of a differential case 1 is formed of a first space 20 and a second space 21 separated from the first space 20. A ring gear 2, a pinion gear 61 and the pi...

PROBLEM TO BE SOLVED: To provide a control device for a vehicle transmission system, which is equipped with: an electric differential part in which differential states of respective rotating elements are controlled by controlling the operation state of a motor; and a shift part, the control device for the vehicle transmission system preventing high speed rotation of a motor constituting a porti...

PROBLEM TO BE SOLVED: To provide a vehicle motion control system for efficiently controlling vehicle motion by using driving force distribution control and braking force distribution control in combination.

SOLUTION: For vehicle motion control, the vehicle motion control system 1 calculates a state quantity associated with motion of a vehicle 10, controlled variables of respective wheels 11...

PROBLEM TO BE SOLVED: To provide a controller for suppressing deterioration in fuel economy in a power transmission device for a hybrid vehicle having a differential mechanism performing a differential operation and an electric motor.

SOLUTION: A selection means 84 selects electric reactive force control generating reactive force torque TR against engine torque TEby means of a firs...

PROBLEM TO BE SOLVED: To properly improve responsiveness to accelerator OFF, and suppress charging caused by the excess power of an electricity accumulation means.

SOLUTION: When the accelerator is turned from on to off while a vehicle is traveling with the operation of an engine, a reduction rate ΔTr is set so as to be larger as an input restriction margin Wr from a power being charged to ...

PROBLEM TO BE SOLVED: To prevent the start and stop of the operation of an engine from frequently occurring while suppressing deterioration of the fuel economy due to continuous engine operation in an inefficient area.

SOLUTION: When a request power Pe* requested by a vehicle becomes not less than a threshold value for start determination Pstart to determine start of the engine, and then th...

PROBLEM TO BE SOLVED: To provide the control technology of a hybrid vehicle capable of securing a booster negative pressure in the negative pressure chamber of a brake booster during motor traveling selectively using only a motor as a power plant.

SOLUTION: A hybrid vehicle 1 is provided with: an internal combustion engine 5 and a motor 50 as a power plant; a first clutch 21 allowing an eng...

PROBLEM TO BE SOLVED: To provide a vehicle motion control system in which a driving force distribution control device cooperates with a braking force control device, which maintains durability of the driving force distribution control device against a dynamic load.

SOLUTION: The vehicle motion control system 1 includes: the driving force distribution control device 2 applying driving force ...

PROBLEM TO BE SOLVED: To provide a traveling controller for supporting the smooth merging of a self-vehicle from a merging path to a trunk line regardless of the presence/absence of a trunk line vehicle.

SOLUTION: This traveling controller 100 for executing acceleration control for accelerating a self-vehicle to a prescribed speed is provided with: a traveling environment information acquis...