Vehicle seat, in particular a motor-vehicle seat

Abstract

The invention relates to a vehicle seat, in particular for a motor vehicle, and equipped with a central control unit, motors, peripheral motor control devices each associated to one motor and connected to the central control unit. To allow rapid and accurate adjustments while providing versatility, the invention provides that each motor and its associated motor control device shall constitute a closed regulation loop.

We claim:  
     
         1 . A vehicle seat comprising: 
 a central control unit,    motors,    peripheral motor control devices each associated to one motor and connected to the central control unit,    wherein closed regulation loops are constituted, each consisting of one of said motors and the peripheral motor control device associated to the motor.    
     
     
         2 . Vehicle seat as claimed in  claim 1 , wherein the motor control devices are connected to one another and to the central control unit by a bus system.  
     
     
         3 . Vehicle seat as claimed in  claim 2 , wherein the bus system is a serial bus.  
     
     
         4 . Vehicle seat as claimed in  claim 2 , wherein the bus system may be expanded to receive further motor control devices.  
     
     
         5 . Vehicle seat as claimed in  claim 1 , wherein the motor control devices are connected to joint power lines.  
     
     
         6 . Vehicle seat as claimed in  claim 5 , wherein the power lines issue from the central control unit.  
     
     
         7 . Vehicle seat as claimed in  claim 6 , wherein the power lines issuing from the central control unit to the peripheral motor control devices are connected in polarization-securing manner to the central control unit.  
     
     
         8 . Vehicle seat as claimed in  claim 1 , wherein the central control unit and the peripheral motor control devices are connected in parallel to the power lines.  
     
     
         9 . Vehicle seat as claimed in  claim 1 , wherein at least one of the closed regulation loops assumes one or more of the following functions: angular-speed detection, angular-speed regulation, detection of direction of rotation, adjusting direction of rotation, detection of position, regulating position, obstacle detection, obstacle-detected limitation of excursion based on obstacle detection or on stops, protection against misuse, self-testing, easy-entry function to allow quick seat access or adjustment, easy-exit function to quickly release seat or adjust it, heat regulation, air circulation regulation, adjustment of seat pneumatics, adjustment of seat hydraulics.  
     
     
         10 . Vehicle seat as claimed in  claim 9 , wherein the angular-speed regulation is carried out by means of PWM.  
     
     
         11 . Vehicle seat as claimed in  claim 9 , wherein the angular-speed regulation is carried out as a function of obstacle detection.  
     
     
         12 . Vehicle seat as claimed in  claim 1 , wherein at least one closed regulation loop comprise(s) at least one memory function including the storage of setpoint values in a memory of the peripheral motor control devices.  
     
     
         13 . Vehicle as claimed in  claim 12 , wherein the minimum of one closed regulation loop is fitted with at least one memory function, one learning function for the initial determination of the setpoint values, including regular resetting of setpoint values.  
     
     
         14 . Vehicle seat as claimed in  claim 1 , wherein a sleep mode of the peripheral motor control devices and/or motors may be adjusted in the central control unit.  
     
     
         15 . Vehicle seat as claimed in  claim 1 , wherein the peripheral motor control devices are integrated into the motors.  
     
     
         16 . Vehicle seat as claimed in  claim 1 , wherein the peripheral motor control devices are identical in design but programmed differently.  
     
     
         17 . Vehicle seat as claimed in  claim 1 , wherein the central control unit and the peripheral motor control devices are designed as a master/slave control system.  
     
     
         18 . Vehicle seat as claimed in  claim 1 , wherein user-operated switches are present at or in the central control unit in particular for the purpose of seat adjustment and in that, after actuation of the switches, control signals shall be issued by said central control unit to the peripheral motor control devices.  
     
     
         19 . Vehicle equipped with at least one seat as claimed in  claim 1 , wherein user-operated switches are mounted in the inner vehicle space, preferably at an arbitrary location in said space.