摘要:
In automotive engineering transmitting and receiving stations are usually used in keyless locking systems as electronic key modules or evaluation units for identifying the key module. Deactivation of the locking system is prevented if the key module allocated by means of a clear identification number from the evaluation unit is not in the immediate vicinity of the evaluation unit. The novel method shall determine the distance between two transmitting and receiving stations with high resolution. According to the novel method, a transmission signal (S1, S2) respectively is generated in the transmitting and receiving stations (1, 2) and transmitted as a series of microwave pulses having a predefined pulse repetition frequency (fp1, fp2) to the other respective transmitting and receiving station (2, 1) and received thereby in the form of a received signal. The pulse repetition frequencies (fp1, fp2) of the transmission signals (S1, S2) vary according to a predefined differential frequency value (fd), which is preferably small in relation to the impulse repetition frequencies. Points of coincidence (t11, t12, . . . ; t21, t22) are determined in the transmitting and receiving stations (1, 2), corresponding to those moments in time, when the pulses of the transmission signal (S1, S2) sent by the respective transmitting and receiving station (1, 2) and the received signal E1, E2) received by the respective transmitting and receiving station (1, 2) coincide. The distance between the transmitting and receiving stations is then determined from the distance between the points of coincidence.
摘要:
A vehicle seat, particularly a motor vehicle seat, with a pair of runners (7) for longitudinal adjustment, a seat-back (3) which can be tilted forward after releasing a locking device, and a runner latching device (10), which is unlatched at release of the locking device to longitudinally displace the seat. A mechanical detection system (12) detects the distance of the momentary seat position from the initial position based on longitudinal displacement, and is active only at release of the locking device. A tracking and blocking device (13) cooperating with the detection system (12) is provided. The latter allows opening and closing of the runner latching device (10) and/or the locking device only at the zero position of the detection system (12).
摘要:
With the case of a vehicle seat, in particular for motor vehicles, consisting of individual structural components that include a seat and a seat back, the latter with connecting joint fittings that may be locked at a desired incline to the seat and swung around a swivel pin running in the transverse direction of the seat, the joint fittings (5) can be chosen from at least two groups, including one from gear fittings and the other from groove fittings (5).