| 摘要 |
The device comprises a stepper motor (5) for actuating a throttle (4), electrical supply means (8) for the motor (5) and means (7) responsive to a signal delivered by a sensor (6) of angular position of the throttle (4) and to a signal representing a setpoint position of this throttle in order to control this supply. According to the invention the device comprises means (9, 10) for digitizing the angular position signal with n bits and the setpoint with (n + m) bits, control means (7) being supplied with the digitized signals in order to drive the position of the stepped motor and of the throttle (4) in closed loop with the aid of an error signal digitized with n bits, and in open loop with the aid of an error signal digitized with (n + m) bits. Application to the control of an internal combustion engine propelling a motor vehicle.
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