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US 11,598,278 B2Granted
Method to elevate idle speed to launch a vehicle with manual transmission
AssigneePACCAR Inc
InventorsBurton Edwin Waite, III, Charles Wayne Reinhardt Swart
Life of this patent
Estimating the term…
Abstract
A method of controlling an idle speed for an engine of a vehicle includes the steps of sensing a vehicle speed. At least one of a parking brake position and a clutch position is also sensed. When it is determined that the vehicle speed is below a maximum vehicle speed, and either the parking brake is released or the clutch is depressed, the engine idle speed is increased from a base idle speed to a launch idle speed.
Claims20
A method, comprising:
- determining for a vehicle, a vehicle speed, an engine speed, a brake position, and a clutch position;
- and
- initiating an engine idle speed increase based at least in part on the vehicle speed, the clutch position, and the brake position, wherein the step of initiating the engine idle speed increase is based at least in part on the vehicle speed being less than a predetermined maximum speed.
A method, comprising:
- sensing a vehicle speed;
- sensing a brake position;
- and
- increasing an idle speed from a base engine idle speed to a launch engine idle speed when the vehicle speed is below a maximum vehicle speed and the brake position moves from an engaged position to a released position, wherein the launch engine idle speed is a predetermined engine speed.
1 more element
A method, comprising:
- determining for a vehicle, a vehicle speed and a parking brake position;
- initiating an engine idle speed increase based at least in part on the vehicle speed and the parking brake position;
- initiating an engine idle speed decrease based on the vehicle speed, wherein the engine idle speed decrease is defined by an exponential decay from an elevated engine idle speed to a base engine idle speed.
Dependencies are inferred from the claim text.