Patent ID: 9499144
Filing Date: 2016-11-22
CPC Classification: B60T,F16C,G01P

Claim Text:
1. A method of detecting and controlling a rolling distance of a vehicle from standstill, the vehicle including a tone wheel having a plurality of encoding members spaced substantially evenly about a periphery thereof, each tone wheel being constructed and arranged to rotate with an associated wheel; and a fixed speed sensor mounted generally adjacent to each tone wheel, the vehicle including a brake system, the method comprising the steps of: determining a travel distance between adjacent encoding members based on the number of encoding members and a tire circumference of the wheel, establishing a required rolling distance of a vehicle from standstill, establishing maximum allowed interrupts per wheel, with an interrupt being defined as each instance an encoding member passes an associated speed sensor, wherein the step of establishing maximum allowed interrupts per wheel comprises: determining whether the vehicle is actually rolling from standstill, once the vehicle is actually rolling from standstill, counting at each wheel, a number of interrupts, and when the maximum allowed interrupts is counted at each wheel, supplying the brake system with pressure increase to return the vehicle to, and hold the vehicle at, standstill prior to reaching the required rolling distance.