Patent classifications
F02N2200/0805
CONDITION BASED VEHICLE PERFORMANCE MANAGEMENT
A vehicle system includes one or more processing circuits configured to monitor for one or more conditions regarding operation of a vehicle and limit a speed at which a driveline of the vehicle drives the vehicle based on the one or more conditions. The one or more conditions include at least one of (a) a tire chain condition indicated by tire chains being installed on wheels of the vehicle or an automatic tire chain system of the vehicle being deployed, (b) a hazard lights condition indicated by hazard lights of the vehicle being active, (c) an adverse weather condition indicated by windshield wipers of the vehicle being active, (d) a pre-operation check condition indicated by an operator of the vehicle failing to complete a vehicle inspection prior to departing, or (e) an approaching response vehicle condition indicated by a response vehicle approaching the vehicle in a response mode of operation.
Method of controlling an automatic engine stop during coasting phase
The present disclosure provides a method of controlling an automatic engine stop of an automotive system, during a coasting phase. A dynamic speed threshold is calculated as a minimum value of a plurality of dynamic speed values. Each dynamic speed value is calculated as a function of an automotive system parameter such as a steering wheel angle, a steering wheel angle rate, a wheel speed difference, an antilock braking system status, or an electronic stability control status (p5) and/or a road condition such as road grade. The automatic engine stop is enabled when a vehicle speed is lower than the dynamic speed threshold.