Integrated electronic shift and parking brake system, including security interlock, for motor vehicles

A motor vehicle comprising:

• wheels that support the vehicle for rolling motion on an underlying surface;
• a powertrain, including a prime mover, that drives driven ones of the wheels;
• a shifter that operates to place the powertrain in a selected one of multiple positions including a PARK position;
• brake mechanisms at the wheels;
• a parking brake actuator that is associated with at least one of the brake mechanisms and that is effective to operate the at least one brake mechanism to perform a parking brake function;
• a service brake system that is associated with the brake mechanisms and that is effective to operate the brake mechanisms to perform a service brake function;
• an electric park brake control for the parking brake actuator for selectively operating the at least one brake mechanism to selectively perform the parking brake function;
• inputs to the electric park brake control including an input from the shifter for distinguishing PARK position from other positions, wherein the electric park brake control causes the brake mechanism at the at least one wheel to perform the parking brake function when the input from the shifter to the electric park brake control discloses that the shifter is in PARK position;
• and a security controller for disclosing a violation of security of the vehicle to the electric park brake control, wherein the electric park brake control causes the brake mechanism at the at least one wheel to perform the parking brake function in response to the security controller disclosing a security violation.