Patent ID: 7290834
Filing Date: 2007-11-06
Classification: B60N

Abstract:
1. A hydraulic vehicle seat adjustment system for providing positional adjustment of at least two seat adjustments of a vehicle seat, the system comprising: a common source of hydraulic fluid; a first hydraulic actuator adapted to provide a first seat adjustment and supplied with hydraulic fluid from the common source of hydraulic fluid; a second hydraulic actuator adapted to provide a second seat adjustment and supplied with hydraulic fluid from the common source of hydraulic fluid; a control module for selectively controlling and directing hydraulic fluid from the common source of hydraulic fluid to the respective first and second actuators; a common fluid flow sensor which, in use, measures a flow of hydraulic fluid from the common source of hydraulic fluid; and a seat position determining unit which is connected to receive a signal from the control module indicating to which of the first and second actuators hydraulic fluid is to be directed, and also is connected to receive a signal from the common fluid flow sensor indicating the amount of the flow of hydraulic fluid from the common source of hydraulic fluid to the respective first and second actuators, wherein the seat positioning determining unit determines the adjusted position of the respective first and second actuators in response to the signals from the control module and the common fluid flow sensor.