Method for adjusting governor actuator in traction control system

A method for operating a traction control system having wheel speed sensors for generating wheel speed signals of drive wheels, a control unit with a memory, a governor link for varying engine speed, and a governor actuator for controlling said governor link, said control unit detecting a tendency of slipping of said drive wheels when said wheel speed signals received thereby exceeds a vehicle speed during slipping of said drive wheels and controlling said governor actuator to carry out positional adjustment of said governor link so that a lower limit value of said engine speed is used during traction control, wherein said positional adjustment of governor link includes:

• providing said memory with initial dam matching that of the vehicle on a stroke position of said governor actuator corresponding to a control position of said governor link during the traction control before said traction control system is mounted on said vehicle;
• inputting an adjustment indicating signal to said control unit after said traction control system is mounted on said vehicle for permitting said control unit to determine the control position of said governor actuator during the traction control and permanently store the determined position of said governor actuator in said memory as an adjusted control position, to thereby permit said control unit to actuate said governor actuator to adjust the control position of said governor actuator during the traction control and store the thus-adjusted control position of said governor actuator during the traction control in said memory,
• causing said control unit to actuate said governor actuator when said adjustment indicating signal is applied to said control unit, to thereby reciprocate said governor and determine a mechanical actuator range of said governor actuator corresponding to an actuation range of said governor link and store then thus-determined mechanical actuation range in said memory;
• causing said control unit to add an amount of offset of said governor actuator depending on the vehicle which is one of said data on the stroke position of said governor actuator previously stored in said memory to a lower limit position of said mechanical actuation range corresponding to a lower limit value of said actuation range of said governor link, to thereby determine a stroke lower limit position of said governor actuator during the traction control corresponding to a servo position of said governor link during maximum deceleration and store the thus-determined stroke lower limit position of said governor actuator in said memory;
• and
• causing said control unit to add an amount of effective stroke of said governor actuator during the traction control depending on the vehicle which is the other of said data on the stroke position of said governor actuator to said stroke lower limit position, to thereby determine a stroke upper limit position of said governor actuator during the traction control corresponding to a servo position of said governor link during minimum deceleration and store the thus-determined stroke upper limit position in said memory.