| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 062230000 | By condition of power source | 11 |
| 20080223059 | Control Method and System - The invention relates to a control method and system comprising an electronic control unit ( | 09-18-2008 |
| 20080302117 | Air conditioning system - An air conditioning system including a variable speed compressor configured to operator at faster and slower speeds. The system includes an evaporator and a thermal expansion valve for regulating the flow of a refrigerant from the compressor to the evaporator. The system includes a flow restricting device in a flow path from the thermal expansion valve to the evaporator thereby increasing the efficiency of the system when the compressor is operating at slower speeds. | 12-11-2008 |
| 20080302118 | Heat Pump Water Heating System Using Variable Speed Compressor - A transcritical refrigeration system includes a compressor, a gas cooler, an expansion device, and an evaporator. Refrigerant is circulated though the closed circuit system. Preferably, carbon dioxide is used as the refrigerant. A variable speed drive controls the speed of the refrigerant flowing through the compressor. Varying the speed of the refrigerant flowing through the compressor changes the mass flow rate of the refrigerant in the system to optimize the coefficient of performance. | 12-11-2008 |
| 20090064695 | Air Conditioner for Vehicles - An air conditioner for vehicles in which the probability of executing pre-air conditioning is increased so that it may be prevented that the inside of the vehicle cannot be often in a comfortable state before the driver gets into the vehicle. The air conditioner performs air conditioning of a vehicle having a traveling motor and an engine as drive sources and comprises a pre-air conditioning main switch. The crew permits operation of pre-air conditioning by turning the switch on. When the pre-air conditioning main switch is set on, an engine control section performs charge preference control where battery charge takes precedence of engine fuel consumption and performs normal control where engine fuel consumption takes precedence when the pre-air conditioning main switch is set off. | 03-12-2009 |
| 20100024457 | INVERTER SYSTEM FOR ON-VEHICLE AIR CONDITIONER - The present invention has an object to provide an on-vehicle air conditioner that can prevent breakage or the like caused by applying a high voltage. In an inverter system | 02-04-2010 |
| 20100031683 | HEAT SOURCE APPARATUS, HEAT SOURCE SYSTEM, AND METHOD FOR OPERATING HEAT SOURCE APPARATUS - A heat source apparatus in which a control device of the heat source apparatus can ascertain a stoppage of an inverter device and in which a stable operating time of the heat source apparatus can be extended is provided. The heat source apparatus includes an electric compressor that is driven by an inverter device and that compresses a refrigerant, the inverter device having a protective function that performs stoppage for device protection on the basis of a predetermined calculation by an inverter control portion, and a control device that controls cold output and/or heat output. The control device includes an inverter-protective-function estimating unit that estimates a calculation result of the protective function of the inverter control portion. | 02-11-2010 |
| 20110120165 | COMPRESSOR AND AIR-CONDITIONER HAVING THE SAME - A compressor and an air-conditioner having the same are disclosed. A compressor application voltage is detected, and the air-conditioner is operated in a pre-set operation mode according to the detection result, or the air-conditioner is operated in a pre-set operation mode in a certain time domain, thus continuously operate the compressor. Or, a compressor temperature or an ambient temperature is detected to operate the air-conditioner in a pre-set operation mode or operate the air-conditioner in a pre-set operation mode within a certain time domain, thus continuously operate the compressor. Accordingly, the compressor can be operated in a particular operation mode within a certain time slot regardless of an ambient temperature, whereby an excessive cooling operation cannot be performed at night to thus provide an agreeable cooling operation and reduce noise. The compressor is prevented from being stopped due to a low voltage, and because power of the compressor is not repeatedly turned on or off, power is consumption can be reduced and reliability can be improved. | 05-26-2011 |
| 20120318015 | VEHICLE AIR CONDITIONER CONTROL SYSTEM - A vehicle air conditioner control system has an air conditioning device has a compressor, a condenser, an expansion valve, and an evaporator, a compressor running rate control device, a deceleration fuel cutoff executing device, and a fuel supply recovery executing device that cancels cutoff of fuel supply and recovers fuel supply at a higher vehicle speed during vehicle deceleration fuel cutoff period with air-conditioner ON than during vehicle deceleration fuel cutoff period with air-conditioner OFF. The compressor running rate control device increases the compressor running rate for a predetermined period just before a fuel supply recovery time with air-condition ON during the deceleration fuel cutoff period more than during non-execution of the deceleration fuel cutoff, and subsequently decreases the compressor running rate at or just before the fuel supply recovery time with air-condition ON equal to or less than during non-practice of the deceleration fuel cutoff. | 12-20-2012 |
| 20130291578 | HEAT PUMP DEVICE, HEAT PUMP SYSTEM, AND METHOD FOR CONTROLLING THREE-PHASE INVERTER - A voltage-command correction-value computation unit outputs a correction value for correcting a voltage command value according to a bus voltage. A multiplier calculates a voltage command value acquired by correcting the voltage command value based on the correction value. A voltage-command generation unit generates and outputs three-phase voltage command values based on the corrected voltage command value calculated by the multiplier and a phase. A PWM-signal generation unit generates six drive signals corresponding to switching elements of an inverter based on the three-phase voltage command values outputted by the voltage-command generation unit and a carrier signal. The PWM-signal generation unit outputs the generated drive signals to the corresponding switching elements of the three-phase inverter, to cause the inerter to generate a high-frequency AC voltage. | 11-07-2013 |
| 20150349677 | DC BRUSHLESS MOTOR CONTROL SYSTEM APPLICABLE FOR AC POWER - A control system electrically coupled between a main control module and a DC brushless motor includes a switching power conversion circuit, a voltage conversion circuit, a central processing circuit, a motor driving circuit and a switching circuit. The switching power conversion circuit is connected to the air-conditioning main control module for receiving an AC power, and rectifying, bucking and filtering the AC power to form and supply a stable DC power for the operation of the DC brushless motor, so that a conventional air-conditioning system converts AC signals into DC signal to control and drive DC brushless motor, so as to achieve the power saving effect without the need of changing the existing pipeline wiring and control interface. | 12-03-2015 |
| 20160091237 | REFRIGERATING DEVICE FOR CONTAINERS - In this container refrigerator, the permissible equivalent negative-phase-sequence current of a generator to be connected is calculated in Step S | 03-31-2016 |
