Speed limit sensing and vehicle speed control device
A vehicle speed control and receiving device technology, applied in the direction of control devices, speed/acceleration control, measuring devices, etc., can solve problems affecting signal reception, etc., and achieve the effect of clear road information, accurate positioning, and accurate road speed limit information
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[0024] Such as figure 1 The device shown includes speed limit signal generation and vehicle receiving device, vehicle speed sensor, speeding prompt and control device, and ECU. The signal generation and vehicle receiving device includes speed limit transmitter 1 and vehicle GPS2. Speed limit transmitter 1 is installed in the limit Speed section, transmit GPS map signal edited with road speed limit information; overspeed prompt and control device includes throttle control motor 6 and accelerator pedal sensor 4; vehicle GPS2, vehicle speed sensor 5, throttle control motor 6 and accelerator pedal sensor 4 are all Connect to ECU3.
[0025] The vehicle speed sensor adopts a Hall vehicle speed sensor, and its structure is mainly composed of a ring gear, a Hall element, a permanent magnet and an electronic circuit. The working principle is that the magnetic field lines of the permanent magnet pass through the Hall element to the trigger ring gear. At this time, the ring gear is equi...
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