Patent ID: 9688116
Date: 2017-06-27
CPC Classifications: B60H,F25B

Claim:
1. A method for controlling an air conditioner compressor of a vehicle, comprising: providing an error based on an expected air conditioner evaporator temperature and a measured or inferred air conditioner evaporator temperature, the expected air conditioner evaporator temperature based on a desired air conditioner evaporator temperature and an air conditioner compressor clutch state; providing proportional, integral, and derivative adjustment terms based on the error; adding a first numeric value to the proportional, integral, and derivative adjustment terms to provide an air conditioner compressor displacement command, the first numeric value determined via extracting a value stored in a table based on the desired air conditioner evaporator temperature; and adjusting a length of a piston stroke of the air conditioner compressor via a controller in response to the air conditioner compressor displacement command.