Toyota Jidosha Kabushiki Kaisha

Masayuki Hashimoto

Takahiro Yoshimura

Masaya Michishita

Ryota Horie

A vehicle driving-force distributing device includes: first connecting/disconnecting teeth disposed on the inner circumferential side of the ring gear; a connecting/disconnecting mechanism that includes a cylindrical member and a connecting/disconnecting sleeve including second connecting/disconnecting teeth and spline-fitted movably in the rotation axis direction and relatively non-rotatably to the outer circumferential side of the shaft insertion portion and that connects and disconnects a power transmission path between the ring gear and the differential case by moving the connecting/disconnecting sleeve in the rotation axis direction between a meshing position at which the second connecting/disconnecting teeth are meshed with the first connecting/disconnecting teeth and a non-meshing position at which the second connecting/disconnecting teeth are not meshed with the first connecting/disconnecting teeth; and a synchronizing mechanism disposed between the ring gear and the cylindrical member and reducing a relative rotation between the first connecting/disconnecting teeth and the second connecting/disconnecting teeth.

Vehicle driving-force distributing device

An engine control device, while executing a fuel-cut control, calculates a target intake air amount (Qat) from a basic intake air amount (Qabase) and an added intake air amount (Qaadd) commensurate with an accessory torque (step S). Next, the engine control device acquires a coolant temperature (Tw) (step S), and then sets a lower-limit intake air amount (Qamin) (step S). When the target intake air amount (Qat) is smaller than the lower-limit intake air amount (Qamin) (NO in step S), the engine control device updates the target intake air amount (Qat) with the lower-limit intake air amount (Qamin). (step S), and adjusts the degree of throttle opening so that the actual intake air amount (Qa) becomes equal to the target intake air amount (Qat) (step S).

Growing community of inventors

Nagoya, Japan

Masayuki Hashimoto