Vehicle traction controller with engine and brake control

摘要: A vehicle traction controller includes engine control and brake routines to improve traction. The routine reduces average slip of driven wheels the by retarding spark timing reducing air flow into via an electronically controlled throttle. is entered if wheel speed above a predetermined threshold speed. Control performed Proportional-Differential (PD) technique. throttle Proportional-Integral-Differential (PID) operates reduce rotational which has highest one greater than maximum desired difference in between value. PD technique employed determine amount braking force generated routine. Braking gradually reduced when each falls below