Toyota Jidosha Kabushiki Kaisha

Denso Corporation

Kabushiki Kaisha Toyoda Jidoshokki Seisakusho

Nippondenso Co., Ltd.

Kabushiki Kaisha Toyota Jidoshokki

Denso Corporation Kariya

Yasushi Kato

Goro Uchida

Shinji Aoki

Hajime Ito

Toshio Morikawa

Norifumi Ban

Takashi Ban

Tetsuhiko Fukanuma

Yusuke Kinoshita

Kazuhiro Kuroki

Yukio Uemura

Shigeki Ito

Takayoshi Matsuno

Yoshinori Okuno

Yumin Hishinuma

Kenichi Kato

Yukiya Sassa

Takuya Higashiura

Yuji Nakane

Hironobu Takeda

Masahiro Shoji

Tomoyuki Miyoshi

A vehicular air conditioning control device that detects an outside air temperature, and calculates the time for the evaporator blower to continue to blow after the engine has been shut off, in an air conditioning system where the compressor is powered by the engine. After a given elapsed time, the control device restarts the blower fan, issues an engine startup request, and initiates refrigerant circulation by the compressor.

Vehicular air conditioning control device, vehicular air conditioning control method, vehicular air conditioning control program, and recording medium

An electric compressor is installed in a vehicle and includes a shell. The electric compressor includes an inverter, a cover, and a conductive component. The cover covers the shell and the inverter. The conductive component is electrically connected to the inverter and arranged outside the cover. The cover includes an outer guide surface inclined relative to a forward direction of the vehicle. The outer guide surface has a normal including a forward component directed in the forward direction. The outer guide surface is arranged closer to an outer side of the vehicle than the conductive component.

Electric compressor

A vehicular air-conditioner with a pollen mode setting intake to an inside air mode, vents to a face mode, and a blower air flow to a limit maximum air flow Mbetween a minimum air flow Lo and a maximum air flow Hi (Lo&#x3c;M&#x3c;M&#x3c;Hi), with an air-conditioning unit provided with a filter for trapping pollen and blowing clean air from which pollen has been removed from the vents to the vehicle compartment, whereby by starting the pollen mode simultaneously with the start of the engine, clean air is immediately blown to the vicinity of the face of the driver from the face vents and thereby the pollen entering the vehicle or pollen carried into the vehicle in the vicinity of the face is blown away, the air flow at this time being a maximum air flow Mable to be withstood in terms of temperature sensation, so a pollen free comfortable environment being created without causing discomfort.

Vehicular air-conditioner

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

According to the present invention, in a heating apparatus having a viscous heater using viscous fluid for heating cooling water, when an engine rotational speed is lower than a set rotational speed relative to a temperature of viscous fluid, a viscous clutch is turned on to transmit a rotational driving force of the engine to a rotor of the viscous heater. In this way, a shearing force is applied to the viscous fluid in the heat-generating chamber, and the circulating cooling water is heated by generated heat of the viscous fluid to improve the heating capacity. When the engine rotational speed is higher than the set rotational speed relative to a temperature of viscous fluid, a viscous clutch is not turned on. Therefore, the rotational driving force of the engine is not transmitted to the rotor of the viscous heater, so that the shearing force is not applied to the viscous fluid to prevent the oil temperature of the viscous fluid from increasing excessively higher than 200.degree. C.

Heating apparatus for vehicle, having heat-generating unit

According to the present invention, when an air-conditioning clutch of a compressor is set on, even if an improvement of a heating capacity by a viscous heater is required, a viscous clutch is turned off not to transmit a rotational driving force of an engine to a rotor of the viscous heater, and further the rotational driving force of the engine is transmitted to the compressor. In this way, a torque applied to the engine E and the V-belt can be reduced, so that a fuel consumption ratio of the engine lowers and a fuel economical performance improves. Further, because an operation of the compressor is intermitted, it is possible to remove a fog of a front windshield, so that a safety of the vehicle travelling can be prevented from being deteriorated.

Heating apparatus for vehicle, having heat generating unit

When a driver performs a steering operation with a small steering angle when a vehicle is stopped, a viscous clutch of a viscous heater is turned on after setting an idling rotational speed of an engine to a high value to prevent an engine stall. Further, when a driver performs the steering operation with a large steering angle when the vehicle is stopped, the viscous clutch is not turned on so that the viscous heater is not operated, thereby greatly reducing a driving load applied to the engine and a V-belt thereof.

Heating apparatus for vehicle

A viscous heater for heating cooling water for cooling a water cooled engine is disposed in a cooling water circuit, and a front heater core is disposed in the cooling water circuit at a downstream side of the viscous heater with reference to a flow direction of the cooling water. Only when a heating operation is the maximum heating operation or the maximum heating operation is desired, a viscous clutch is turned on to transmit a driving force of the engine to the viscous heater. When the maximum heating operation is not desired, the viscous clutch is turned off so that the driving force of the engine is not transmitted to the viscous heater. Therefore, a load of the engine is reduced, and the cost for running the vehicle can be lowered.

According to the present invention, when a vehicle speed is less than a set value (e.g., 40 km/h) and a throttle opening degree is more than a set value, it is determined that the vehicle is accelerating, and a viscous clutch is turned off. Therefore, a shearing operation of high-viscosity fluid by a rotor of a viscous heater is not performed. In this way, a driving load applied to an engine is reduced, so that an accelerating state suitable for an intention of a driver can be obtained. Further, when the vehicle speed is more than a set value (e.g., 40 km/h) and an engine rotational speed is more than a set value (e.g., 3500 r.p.m.), the viscous clutch is turned off, and a driving load applied to the engine and a V-belt is reduced.

A heating apparatus for a vehicle includes a heat exchanger for implementing heat exchange between coolant which has cooled an engine and air directed to a vehicle interior to heat the vehicle interior. A viscous heater has a rotor and a heating chamber containing viscous fluid. The rotor rotates when being subjected to rotational power of the engine. The viscous fluid is subjected to a shear force and is heated when the rotor is subjected to the rotational power. The viscous heater heats the coolant fed to the heat exchanger as the viscous fluid in the heating chamber is heated. A clutch is operative for selectively permitting and inhibiting transmission of the rotational power from the engine to the rotor. A belt transmission device connects the engine and the clutch. A physical quantity detecting device is operative for detecting a physical quantity related to a rotational speed of the rotor. A control device is operative for controlling the clutch to inhibit the transmission of the rotational power from the engine to the rotor when the physical quantity detected by the physical quantity detecting device is equal to or less than a predetermined value.

In a heating apparatus according to the present invention, when a temperature of cooling water in a cooling water circuit is equal to a set cooling water temperature or less, a viscous clutch is turned on to operate a viscous heater disposed in the cooling water circuit, for maintaining the temperature of the cooling water in the cooling water circuit at a predetermined value. A shaft of the viscous heater is rotated by a water-cooled engine through a belt transmitting mechanism and the viscous clutch. The set cooling water temperature is increased in accordance with an increase of a target air temperature calculated based on a set temperature, an inside air temperature, an outside air temperature, and a sunlight amount to optimize a used condition of the viscous heater.

Heating apparatus for vehicle having heat-generating unit

An air conditioner for a vehicle which prevents backflow of outside air into a vehicle interior. An inside/outside air switching damper of the air conditioner for a vehicle is connected to a servo motor by a link. Due to driving of the servo motor, the inside/outside air switching damper swings between an inside air position, at which the inside/outside air switching damper closes an inside air passage side opening, and an outside air position, at which the inside/outside air switching damper closes an inside air suction opening. The servo motor is connected to an amplifier for control. An inside/outside air mode switch, a blowout opening mode switch, a vehicle speed sensor, and a blower voltage detecting circuit are connected to the amplifier for control. When a ram pressure generated when a vehicle is traveling becomes greater than a blower discharge pressure, the inside/outside air switching damper closes the inside air suction opening and outside air is introduced into an inside air passage through a bypass duct.

Growing community of inventors

Toyota, Japan

Yasushi Kato