Class / Patent application number | Description | Number of patent applications / Date published |
062133000 | Responsive to vehicle body motion or traction | 20 |
20080229767 | Method and Device for Controlling Refrigeration Cycle of Air conditioning System for Vehicle - In an air conditioning system having a variable displacement compressor driven by an engine of a vehicle, method and device for controlling a refrigeration cycle are provided to ensure necessary cooling performance of the system without damaging the traveling performance of the vehicle. In the method, a limit value in the discharge rate of the variable displacement compressor is determined by an engine speed or a variable related to the engine speed. The variable displacement compressor is controlled on the basis of the limit value. | 09-25-2008 |
20090000319 | REFRIGERATION CYCLE DEVICE FOR VEHICLE - In a refrigeration cycle device with a capacity-variable compressor, a preset suction pressure that serves as a target value of a refrigerant suction pressure of the compressor is calculated and a refrigerant discharge capacity of the compressor is controlled by operating a capacity varying portion such that the suction pressure of the compressor is appreciated to the preset suction pressure. A thermal load detection portion is configured to detect a thermal load of a refrigeration cycle, and a refrigerant flow amount detection portion is configured to detect a flow amount of refrigerant circulating through the refrigeration cycle. In the refrigeration cycle device, a pressure at a predetermined part of the compressor is estimated based on the thermal load detected by the thermal load detection portion and on the flow amount detected by the refrigerant flow amount detection portion. | 01-01-2009 |
20090056351 | Cabin Heating Control System - A system described is for providing improved cabin heating. The system may include a vehicle cabin heating system having a first and second heating system receiving coolant flow from the engine; and a control system for operating the engine at a first engine idle speed upon entering idle speed control operation from previous drive operation, maintaining said first idle speed for a duration, and then increasing engine speed to increase coolant flow to the second heating system during cold ambient conditions when the second heater system is in operation | 03-05-2009 |
20090145141 | CONTROLLER FOR VEHICLE - A controller for a vehicle makes it possible to restrain a temperature rise or a temperature fall in a passenger compartment and also to reduce fuel consumption in conducting control to temporarily stop an engine when the vehicle is at rest. The controller for a vehicle includes an in-passenger-compartment temperature sensor which detects the temperature of the air supplied to an evaporator by actuating a blower fan, an outside air temperature sensor, an evaporator temperature sensor which detects the temperature of the evaporator, and an engine stop duration determiner which determines an engine stop duration on the basis of the temperature detected by the evaporator temperature sensor immediately before an engine stops and the temperatures detected by the outside air temperature sensor and the in-passenger-compartment temperature sensor. An engine control unit continues the operation of the blower fan after a stop condition holds and the engine is stopped, and then restarts the engine and actuates a compressor when the engine stop duration has elapsed. | 06-11-2009 |
20090211278 | Refrigeration cycle device for vehicle - In a refrigeration cycle device for a vehicle, a weak-inflammability refrigerant that does not ignite at a high-temperature heat source mounted in an engine compartment of the vehicle in a refrigerant single state is circulated in a refrigerant cycle. The refrigerant cycle includes a compressor for compressing and discharging the refrigerant. The compressor includes an oil separator that is located at a refrigerant discharge side of the compressor to separate a lubrication oil from the refrigerant and to return the separated lubrication oil to an interior of the compressor, a shutting portion configured to shut a reverse flow of the refrigerant at a refrigerant suction side of the compressor, and a driving portion located to drive the shutting portion. Furthermore, the driving portion causes the shutting portion to shut the reverse flow of the refrigerant when the refrigerant cycle is damaged. | 08-27-2009 |
20090260375 | REFRIGERATION CYCLE APPARATUS - A refrigeration cycle apparatus includes a compressor, a condenser, a pressure-reducing mechanism, an evaporator, an orifice provided in a refrigerant flow path from the compressor to the pressure-reducing mechanism, a differential pressure sensor that detects the differential pressure before and after the orifice, a refrigerant flowrate calculating portion that calculates a refrigerant flowrate based on the differential pressure, and a torque estimating portion that estimates the torque required to drive the compressor based on the refrigerant flowrate calculated by the refrigerant flowrate calculating portion, the intake pressure of the compressor, and the discharge pressure of the compressor. | 10-22-2009 |
20100101251 | Method And System For Controlling An Aircraft Air Conditioning System With Optimised Fuel Consumption - In a method for controlling an aircraft air conditioning system ( | 04-29-2010 |
20110048044 | AIR-CONDITIONING DEVICE FOR VEHICLE - An air-conditioning device includes a refrigerating cycle; a controller to control a refrigerant discharge capacity of a compressor of the cycle in a manner that a refrigerant evaporation temperature of an evaporator of the cycle approaches a target temperature; and a setting portion to set an upper limit for a fuel amount consumed by an engine based on at least the refrigerant evaporation temperature. The controller controls the refrigerant discharge capacity of the compressor in a manner that an actual fuel amount consumed by the engine is equal to or lower than the upper limit. | 03-03-2011 |
20110067419 | AIR-CONDITIONING CONTROL DEVICE FOR VEHICLE - An air-conditioning control device for a vehicle includes an air-conditioner, an estimating portion, and a controller. The air-conditioner includes a compressor driven by an engine of the vehicle so as to compress refrigerant, and a heat storage portion having a coolness storage agent to store heat of the refrigerant. A passenger compartment of the vehicle is air-conditioned using air cooled by the heat storage portion when the compressor is stopped. The estimating portion estimates a present value of coolness amount stored in the heat storage portion based on a temperature history of the refrigerant. The controller controls the compressor based on the estimated present value of coolness amount. | 03-24-2011 |
20110067420 | HVAC SYSTEM - An HVAC system for a vehicle. The HVAC system includes a battery management controller, which can be used to run the components of the HVAC system when the engine of the vehicle is not running. | 03-24-2011 |
20110120160 | System For Controlling An Air-Conditioning System - A control system controls a vehicle air-conditioning system including a cooling circuit having a compressor with a refrigerant that is supplemented with a compressor lubricant. The control system includes a control unit which controls the drive torque used for starting up the compressor. The control unit reduces the drive torque as a function of a determined time parameter that represents an elapsed compressor stoppage time (ΔT). | 05-26-2011 |
20120324929 | VEHICLE AIR-CONDITIONER CONTROL SYSTEM - A vehicle air conditioner control system has an air conditioning device for performing a refrigerating cycle, having a compressor that intakes, compresses, and discharges a refrigerant, a condenser that condenses the refrigerant discharged from the compressor, an expansion valve that depressurizes the refrigerant condensed by the condenser, an evaporator that performs heat exchange between open air and the refrigerant to vaporize the refrigerant, a compressor ON/OFF control device that controls a running rate of the compressor by alternating between an ON state and an OFF state, a vehicle deceleration fuel cut-off executing device that performs cut-off fuel supply during vehicle deceleration, and a fuel supply recovery executing device that cancels fuel cut-off and recovers fuel supply during vehicle deceleration fuel cut-off period based on a demand to turn on the compressor. | 12-27-2012 |
20140060097 | REFRIGERATED TRUCK BATTERY BACK-UP SYSTEM AND RELATED METHODS - A refrigerated truck may include a refrigerated compartment, and an active refrigeration device for cooling the compartment. The refrigerated truck may include a power module for powering the active refrigeration device, and selectively coupling the battery to a grid power connection. | 03-06-2014 |
20150114016 | VEHICLE AIR CONDITIONER - When an air conditioning ECU determines that it is immediately before idling stop, the air conditioning ECU implements a front seat air conditioning mode even if the air conditioning ECU determines that an occupant intensive air-conditioning mode can be implemented. Accordingly, the air conditioning ECU controls opening and closing mechanisms so as to blow a conditioned air from driver's seat side outlet ports, and also blow the conditioned air from a passenger's seat side foot outlet port. Hence, in cooling operation, since a temperature increase of air drawn into an inside air inlet port is limited when the idling stop is carried out, temperature increase of air blown into the vehicle interior from the outlet port can be restricted. In other words, a temperature change in the vehicle interior can be limited when a travel engine stops due to the idling stop. | 04-30-2015 |
20150367711 | AIR CONDITIONING DEVICE FOR VEHICLE AND AIR CONDITIONING CONTROL METHOD FOR VEHICLE - An air conditioning device for vehicle includes a refrigeration cycle including a compressor for sucking, compressing and discharging a refrigerant, a condenser for condensing the high-temperature and high-pressure refrigerant discharged from the compressor, an expansion valve for decompressing the refrigerant condensed in the condenser and an evaporator for evaporating the refrigerant through heat exchange between the refrigerant reduced in pressure by the expansion valve and surrounding air. This air conditioning device for vehicle increases an operation rate of the compressor more than that before a vehicle speed drops below a first permitted vehicle speed higher than a fuel cut recovery vehicle speed when an air conditioner is on, at which the compressor is actuated, when the vehicle speed drops below the first permitted vehicle speed during the deceleration of a vehicle associated with a fuel cut. | 12-24-2015 |
20160016455 | CONTROL DEVICE OF VEHICLE - A front-seat air conditioner and a rear-seat air conditioner, which are independent from each other, are provided. An engine is automatically stopped under preset stop conditions. When the engine is automatically stopped in a case in which the number of passengers is a specified preset number (five, for example) or larger during heating, the operation of the rear-seat air conditioner is stopped (reduction of power consumption) and the operation of the front-seat air conditioner is continued (prevention of windshield glass from being fogged). Thereby, the windshield glass can be prevented from being fogged during the engine's automatic stop, reducing the power consumption of air conditioning. | 01-21-2016 |
20160201961 | AIR CONDITIONING DEVICE FOR VEHICLE | 07-14-2016 |
062134000 | Electrical generator | 3 |
20100000241 | Trailer Refrigeration System - An engine unit (U | 01-07-2010 |
20130118196 | MOBILE REFRIGERATION EQUIPMENT WITH DC DRIVE - A mobile refrigeration equipment with DC drive, comprising a heat preservation library body with inner refrigeration system which compressor is DC variable frequency compressor supplied power by second DC voltage and power supply system which consists of double power DC generator that output the first DC voltage and second DC voltage and battery charging with the second DC voltage. The battery and double power DC generator constitute two kinds of power for DC variable frequency compressor. The power controller is linked among the battery, double power DC generator and DC variable frequency compressor. The power controller at least comprises the power switching module which can achieve that, the DC variable frequency compressor is supplied from double power DC generator automatically turning to battery when the vehicle engine is in low speed operating, and the DC variable frequency compressor is supplied from battery automatically turning to double power DC generator when the vehicle engine is in normal speed operating. | 05-16-2013 |
20130139532 | AIR CONDITIONER FOR VEHICLE - A controlling unit includes a fan air supply amount setting unit communicated with a supply fan feeding air cooled by an electric compressor into an interior of a vehicle and setting an air supply amount of the supply fan, and sets a rotation speed upper limit value of the electric compressor based on a vehicle speed detected by a vehicle speed detecting unit and the air supply amount set by the fan air supply amount setting unit. | 06-06-2013 |