Denso Corporation

Toyota Jidosha Kabuhsiki Kaisha

Tatsuyuki Matsubara

Akira Ito

Yoshinori Ichishi

Takeshi Wakisaka

Yoshinori Okuno

Tatsuru Tanaka

Takehiro Sato

A vehicular air conditioning device includes a blower, a heating heat exchanger, an auxiliary heater, and a blower controller. The heating heat exchanger heats blown air by exchanging heat between the blown air and the cooling water of the in-vehicle device emitting heat during operation. The blower controller is configured to control the operation of the blower. The blower controller is configured to increase a blowing capacity of the blower with increase of a temperature of the cooling water. The blower controller, during operation of the auxiliary heater, increases the blowing capacity after a waiting time during which the increase of the blowing capacity is prohibited has elapsed since a start-up switch of a vehicle system is turned on. The vehicular air conditioning is capable of implementing a quick warming of the in-vehicle device without impairing the heating feeling of occupant.

Vehicular air conditioning device

In an OFF condition of an ECO switch, a stop decision reference value Wstop is set to a value W(step S). In an ON condition of the ECO switch, the stop decision reference value Wstop is set to a value W(step S). When an output limit Wout of a battery set according to a battery temperature and a state of charge of the battery is not less than the set stop decision reference value Wstop, the engine is permitted to stop (step S). When the output limit Wout is less than the set stop decision reference value Wstop, the engine is prohibited from stopping (step S). The value Wis specified as a value of electric power required for a smooth restart of the engine after its stop during a drive of the vehicle. The value Wis specified to be close to a value of minimum electric power required for a restart of the engine after its stop during a drive of the vehicle and is set to be smaller than the value W

Hybrid vehicle and control method thereof

Growing community of inventors

Toyota, Japan

Tatsuyuki Matsubara