The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 15, 2008
Filed:
May. 12, 2005
Qiong Sun, Farmington Hills, MI (US);
Eric Schieb, Duluth, GA (US);
Arnold H. Spieker, Commerce Township, MI (US);
David W. Weber, South Lyon, MI (US);
Frank Lubischer, Novi, MI (US);
Qiong Sun, Farmington Hills, MI (US);
Eric Schieb, Duluth, GA (US);
Arnold H. Spieker, Commerce Township, MI (US);
David W. Weber, South Lyon, MI (US);
Frank Lubischer, Novi, MI (US);
Kelsey-Hayes Company, Livonia, MI (US);
Abstract
A method is provided for controlling a low speed operation of a vehicle. A speed activation switch is activated. A target vehicle speed is calculated in response to an accelerator pedal demand as determined by an accelerator pedal position where each respective accelerator pedal position is associated with a respective predetermined target vehicle speed. A vehicle turning geometry is determined in response to a steering wheel angle input. A target wheel speed of each of a plurality of vehicle wheels is calculated as a function of the target vehicle speed and turning geometry. An actual wheel speed of each wheel is measured. A net torque is determined in response to the target wheel speeds and actual wheel speeds. An engine output torque and a braking torque are determined in response to the net torque. The engine output torque and the total vehicle braking torque are controlled for cooperatively maintaining the target vehicle speed.