Idle speed adjustment system
OwnerRichard Owens, Nick Scheuflerinventors
Life of this patent
Estimating the term…
Abstract
An engine idle control system is provided in a vehicle having an engine that drives an electric power generator arranged to selectively provide electric power to an electrical load of the vehicle and to selectively charge a battery of the vehicle. The engine idle control system includes: a sensor that detects a state of charge (SOC) of the battery; and a controller that controls an idle speed of the engine in response to the SOC detected by the sensor, wherein the controller is provisioned to skip at least one specific engine idle speed that has been identified as a cause of at least one of: unwanted noise in the vehicle; unwanted vibrations in the vehicle; undesirable emissions control; or undesirable driveline torque.
Claims20
In a vehicle having an engine that drives an electric power generator arranged to selectively provide electric power to an electrical load of the vehicle and to selectively charge a battery of the vehicle, an engine idle control system comprising:
- a sensor that detects a state of charge (SOC) of the battery;
- and
- a controller that controls an idle speed of the engine in response to the SOC detected by the sensor, wherein said controller is provisioned to skip at least one specific engine idle speed that has been identified as a cause of at least one of:
- unwanted noise in the vehicle;
- unwanted vibrations in the vehicle;
- undesirable emissions control;
- or undesirable driveline torque.
In a vehicle having an engine that drives an electric power generator arranged to selectively provide electric power to an electrical load of the vehicle and to selectively charge a battery of the vehicle, an engine idle control system comprising:
- sensing means for detecting a state of charge (SOC) of the battery;
- and
- control means for controlling an idle speed of the engine in response to the SOC detected by the sensing means, wherein said control means is provisioned to skip at least one specific engine idle speed that has been identified as a cause of at least one of:
- unwanted noise in the vehicle;
- unwanted vibrations in the vehicle;
- undesirable emissions control;
- or undesirable driveline torque.
In a vehicle having an engine that drives an electric power generator arranged to selectively provide electric power to an electrical load of the vehicle and to selectively charge a battery of the vehicle, a method for controlling a idle speed of the engine comprising:
- (a) identifying an engine idle speed that is a cause of at least one of:
- unwanted noise in the vehicle;
- unwanted vibrations in the vehicle;
- undesirable emissions control;
- or undesirable driveline torque;
- (b) determining a state of charge (SOC) of the battery;
- and
- (c) adjusting the idle speed of the engine in response to the determined SOC of the battery, wherein said adjustment of the idle speed of the engine is executed such that the identified engine idle speed is avoided.
Dependencies are inferred from the claim text.