Plausibility/Safety Features

To avoid malfunctions or unsafe conditions, the GR II continuously monitors the input and output signals. Redundant (or dual signal) processing ensures that the input signals are plausible and prevents unsafe cruise control operation from being carried out. The following safety measures are also included in the total scope of cruise control operation.

• Minimum speed - The minimum speed threshold for cruise control operation is 30 km/h ( approx. 20 MPH). If the speed drops below this value the cruise control will not operate.
• Shut off priority - The brake pedal and transmission neutral switch have priority for switching the system off. If a malfunction caused several commands to be called up at the same time, the brake switch signal would disengage the system.
• If the set speed is exceeded by more than 8km/h (approx. 5MPH), the system will disengage by the actuator clutch. When the speed drops below the threshold, the clutch will re-engage and the cruise will continue operation.
• The data link from the cruise control switch is continuously checked for signal integrity.