POWERTRAIN MOUNT ASSEMBLY FOR A MOTOR VEHICLE

摘要

A powertrain mount includes a resilient mount that is connected to a powertrain component by a connecting arm. The resilient mount is moveable by an actuator member relative to a structural member of a motor vehicle in an opposite direction to a predicted displacement of the connecting arm so as to reduce the displacement of the powertrain component relative to a fixed point on the motor vehicle when the predicted displacement occurs. This reduces the final displacement of the powertrain component relative to a fixed point on the motor vehicle when the predicted displacement occurs and allows the use of a softer resilient mount than would otherwise be the case.

主权项

1. A powertrain mount assembly for connecting a powertrain component to a structural part of a motor vehicle, the assembly comprising a resilient mount for connection to the structural part of the motor vehicle, a connecting arm for connecting the resilient mount to the powertrain component, an actuator to displace the resilient mount relative to the structural part of the motor vehicle, and a controller to control the actuator to displace the resilient mount in response to an input indicative of an expected movement of the powertrain component, wherein the resilient mount comprises a frame, first and second resilient members mounted in the frame and interposed between the connecting arm and the frame such that movement of the connecting arm in a first primary direction is resisted by compression of the first resilient member and movement of the connecting arm in a second primary direction that is opposite to the first primary direction is resisted by compression of the second resilient member and, when the input indicates that the powertrain component is expected to be displaced relative to the structural part of the motor vehicle, the controller is arranged to use the actuator to displace the frame of the resilient mount in an opposite direction to the expected movement of the powertrain component so as to produce a pre-load in a respective one of the first and second resilient members of the resilient mount.