Toyota Jidosha Kabushiki Kaisha

Denso Corporation

Other

Takayoshi Matsuno

Hiroshi Nonoyama

Toshihiko Muraki

Tadashi Nakagawa

Makoto Mimoto

Tsutomu Matsuki

Shunkichi Suzaki

Keiichi Uno

Yoshimitsu Inoue

Shigeki Iwanami

Yoshiaki Kikuchi

Takayoshi Kawai

Hiroshi Kishita

Hiroki Nakamura

Yuji Takeo

Kiwamu Inui

Yasushi Kato

Yoshinori Okuno

Toyohiko Etoh

Takuya Higashiura

Hirofumi Mokuya

Yasukazu Kitamine

Eizo Hayashi

Masashi Iwai

An air conditioning apparatus for a vehicle in which an engine room ( ) and a passenger compartment ( ) are separated by a dash panel ( ), the vehicular air-conditioning apparatus having a conditioned air blowout opening ( ) and a passenger compartment internal air suction opening ( ) that are opened at a side of the passenger compartment ( ), the passenger compartment internal air suction opening ( ) being provided in an upper portion of an instrument panel ( ).

Vehicular air conditioning apparatus

In a refrigerant cycle for a vehicle air conditioner, a compressor is operated by a power from a vehicle engine, a load detecting unit is disposed to detect load of the engine, an electromagnetic clutch is turned off so that a consumed power consumed in the compressor is reduced to zero when the load detected by the load detecting unit is equal to or larger than a first threshold value. In the refrigerant cycle, the first threshold value is set to be changed along a power-cutting curved line in such a manner that an increase rate of the first threshold value relative to the vehicle speed becomes larger as the vehicle speed becomes larger.

Vapor-compression refrigerant cycle for vehicle

There is provided an air conditioner for a vehicle, which comprises a refrigerating cycle having a compressor ( ), a water cooling cycle formed by a radiator ( ) and a heat storage tank ( ), which are switched by passage switching valves ( ) and ( ), and a water heating cycle formed by a heater core ( ) and the heat storage tank ( ). As a result, when an engine is being driven, heat for cooling or heating is stored in the heat storage tank ( ) by the water cooling cycle or the water heating cycle, and when an engine ( ) is in a stopped state, the heat stored in the heat storage tank ( ) is used to allow cooling or heating

Air conditioner for a vehicle

A condenser has an outlet side region close to an outlet for discharging refrigerant from the condenser. The outlet side region does not face auxiliary radiator, which is disposed on a cooling air upstream side of the condenser. Accordingly, low temperature cooling air that does not pass through the auxiliary radiator can flow into the outlet side region of the condenser in which the refrigerant is lowered most. As a result, a difference in temperature between the refrigerant and the cooling air at the outlet side region becomes large. This prevents deterioration of cooling capacity of the condenser.

Heat exchanger apparatus including auxiliary radiator for cooling exothermic component

An air-conditioning device includes a control system for saving fuel consumed to drive the device and for enhancing comfortability of passengers at the same time. The air-conditioning device is operated under a cooling mode emphasizing comfortability or under an economy mode emphasizing fuel economy. Under the cooling mode, the device is controlled in a lower temperature range. Under the economy mode, the device is controlled in an intermediate temperature range to secure comfortability when cooling-down is required, and in a higher temperature range to save fuel after the cooling-down has been completed. Information on vehicle speed may be used in the control under the economy mode. The device may be turned off or controlled in a higher temperature range to save fuel, especially when the vehicle comes to a halt. Frost on a windshield which develops when the vehicle is at a halt for a certain period without operating air-conditioning device is avoided by operating the device at a lower temperature, only when such condition exists. Such condition may be detected by a humidity sensor installed in the passenger compartment.

Air-conditioning device for hybrid vehicle

To provide a vehicular air conditioning system for activating an electric heater with the output coming from an inverter by actuating a relay at a reasonable cost, a relay and an electric heater acting as electric heat source are connected in series between an output line of three output lines of an inverter and the negative side of a vehicular power supply. The electric heater employs a nichrome wire as its heating element and is used for warming the inside of a vehicle compartment. Moreover, the relay is turned ON/OFF after the output voltage of the inverter is set to zero. As a result, the durability of the relay can be improved, and this relay can be implemented by an existing one without newly manufacturing any dedicated relay so that the cost can be lowered.

Vehicular air conditioning system

A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, includes: a battery chamber for accommodating the battery; a cooling device having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of the battery chamber by the cooling fan; a cooling-air circulating device for circulating air used in cooling the battery between the battery chamber and the vehicle compartment by guiding the air into the vehicle compartment; an exhausting device for exhausting the air used in cooling the battery to outside the vehicle; a changeover device for effecting a changeover between the cooling-air circulating device and the exhausting device; a temperature detecting device for detecting at least one of a temperature of the interior of the battery chamber and a temperature of the battery; and a changeover controlling device for selecting the exhausting device by the changeover device when the temperature detected by the temperature detecting device has become greater than or equal to a predetermined value.

Battery cooling system for vehicle

When the vehicle stops, a target blowout temperature, a temperature after evaporator, and a predetermined temperature which has been preset are compared with each other. Accordingly, when it is judged that cooling capacity is maintained, a 'start engine' demand is not outputted. When it is judged that cooling capacity is not obtained, a 'start engine' demand is outputted. After a 'start engine' demand has been outputted, even when cooling capacity is maintained, an engine is not stopped. As a result, fuel wastage and annoyance causing to passengers by the engine that keeps on starting up when the vehicle stops can be prevented.

Air conditioning controller for a hybrid car

The present invention relates to a battery heating device for an electric vehicle, which includes: a combustion heater for heating an interior of the electric vehicle; batteries which are a driving source of the electric vehicle, the batteries being disposed about the combustion heater; and a transfer device for transferring exhaust heat from the combustion heater, which is in operation, to the batteries. When the combustion heater is actuated, the battery temperature is raised by the exhaust heat from the combustion heater.

Battery temperature-raising device for electric vehicle

Growing community of inventors

Okazaki, Japan

Takayoshi Matsuno