Air-conditioning system for vehicle and its control method
AssigneeKabushiki Kaisha Toyota Jidoshokki
InventorsYasuharu Odachi, Ken Suitou
Life of this patent
Estimating the term…
Abstract
An air-conditioning system for a vehicle including a refrigerant circuit and an engine, has a compressor in the refrigerant circuit, a battery, an electric motor and a mechanism operative to controllably connect and disconnect a power transmitting path between the engine and the motor. The motor is connected to drive the compressor when energized by the battery. A first controller is operative to control the electric power supplied to the motor from the battery. A capacity control mechanism is responsive to the controller to maintain the discharge capacity of the compressor below a predetermined value upon starting the engine by the motor.
Claims23
An air-conditioning system for a vehicle including a refrigerant circuit and an engine, comprising:
- a compressor in the refrigerant circuit;
- a battery;
- an electric motor connected to the compressor when energized by the battery;
- a mechanism operative to controllably connect and disconnect a power transmitting path between the engine and the motor;
- a first controller operative to control the electric power supplied to the motor from the battery;
- and
- a capacity control mechanism responsive to the controller to maintain the discharge capacity of the compressor below a predetermined value upon starting the engine by the motor.
An air-conditioning system for a vehicle including a refrigerant circuit and an engine, comprising:
- a compressor in the refrigerant circuit;
- a battery;
- an electric motor connected to the compressor when energized by the battery;
- a first controller operative to control the electric power supplied to the motor from the battery;
- and
- a capacity control mechanism responsive to the controller to maintain the discharge capacity of the compressor below a predetermined value upon starting the engine by the motor.
A method for controlling an air-conditioning system for a vehicle including a refrigerant circuit and an engine, comprising the steps of:
- receiving a signal for starting the engine;
- maintaining the discharge capacity of a compressor in the refrigerant circuit below a predetermined value;
- supplying an electric motor operatively connected to the compressor with electric power;
- and
- starting the engine by the motor.
Dependencies are inferred from the claim text.