Abstract: A launch interval is determined for a vehicle based on the time that the operator takes to move a foot from the brake pedal to the accelerator pedal for launching the vehicle from a stopped condition. Such launch interval may be determined for multiple launches to determine to determine an average launch interval. During the launch interval, actions can be taken to prepare the engine and/or turbocharger to launch the vehicle once the operator has called for such a launch by depressing the accelerator pedal. The magnitude of the actions taken and/or the rate at taking such actions can be based on the launch interval, i.e., whether the operator tends to move rapidly or slowly from brake pedal to accelerator pedal. The vehicle may base the rate of the actions on the driving style of the particular driver currently driving the vehicle.

Abstract: Turbo lag is a known impediment of a turbocharged, small displacement engine providing the feel of a large displacement engine. A method of spinning up the exhaust turbine during an interval between the time that the operator moves his/her foot from the brake pedal to the accelerator pedal to initiate a launch. A non-exhaustive list of actions that can be taken to increase exhaust enthalpy provided to the turbine include: opening the throttle, retarding the spark, and closing the wastegate. Additionally, a brake can be applied at one of the vehicle wheels to keep the engine from launching forward during this interval.

Abstract: Turbo lag is a known impediment of a turbocharged, small displacement engine providing the feel of a large displacement engine. A method of spinning up the exhaust turbine during an interval between the time that the operator moves his/her foot from the brake pedal to the accelerator pedal to initiate a launch. A non-exhaustive list of actions that can be taken to increase exhaust enthalpy provided to the turbine include: opening the throttle, retarding the spark, and closing the wastegate. Additionally, a brake can be applied at one of the vehicle wheels to keep the engine from launching forward during this interval.

Abstract: Turbo lag is a known impediment of a turbocharged, small displacement engine providing the feel of a large displacement engine. A method of spinning up the exhaust turbine during an interval between the time that the operator moves his/her foot from the brake pedal to the accelerator pedal to initiate a launch. A non-exhaustive list of actions that can be taken to increase exhaust enthalpy provided to the turbine include: opening the throttle, retarding the spark, and closing the wastegate. Additionally, a brake can be applied at one of the vehicle wheels to keep the engine from launching forward during this interval.

Abstract: Turbo lag is a known impediment of a turbocharged, small displacement engine providing the feel of a large displacement engine. A method of spinning up the exhaust turbine during an interval between the time that the operator moves his/her foot from the brake pedal to the accelerator pedal to initiate a launch. A non-exhaustive list of actions that can be taken to increase exhaust enthalpy provided to the turbine include: opening the throttle, retarding the spark, and closing the wastegate. Additionally, a brake can be applied at one of the vehicle wheels to keep the engine from launching forward during this interval.

Abstract: A launch interval is determined for a vehicle based on the time that the operator takes to move a foot from the brake pedal to the accelerator pedal for launching the vehicle from a stopped condition. Such launch interval may be determined for multiple launches to determine to determine an average launch interval. During the launch interval, actions can be taken to prepare the engine and/or turbocharger to launch the vehicle once the operator has called for such a launch by depressing the accelerator pedal. The magnitude of the actions taken and/or the rate at taking such actions can be based on the launch interval, i.e., whether the operator tends to move rapidly or slowly from brake pedal to accelerator pedal. The vehicle may base the rate of the actions on the driving style of the particular driver currently driving the vehicle.

Abstract: A differential mechanism includes annular wave springs, each spring located between the back of a side gear and the inner surface of a differential casing. The spring is formed with waves that extend around the spring's circumference and radially across its width, each wave having an amplitude formed of angularly spaced peaks and valleys spaced angularly and located between the peaks. When the mechanism transmits torque, each spring is compressed by a thrust force at the mating teeth of the pinion and side gears, thereby producing a spring force that urges the side gears toward the pinions.

Abstract: A differential mechanism includes annular wave springs, each spring located between the back of a side gear and the inner surface of a differential casing. The spring is formed with waves that extend around the spring's circumference and radially across its width, each wave having an amplitude formed of angularly spaced peaks and valleys spaced angularly and located between the peaks. When the mechanism transmits torque, each spring is compressed by a thrust force at the mating teeth of the pinion and side gears, thereby producing a spring force that urges the side gears toward the pinions.