WHEEL POSITION DETECTION DEVICE

A wheel position detection device for a vehicle includes: a wheel-side communication device having an acceleration sensor, a first control unit that stores a detection result of the acceleration sensor and generates a frame that stores identification information of each wheel-side communication unit, and a first communication unit; and a vehicle-side communication device having a second communication unit and a second control unit that determines the wheel-side communication device that has transmitted the frame. The second control unit transmits measurement start and end timings to each wheel-side communication device. A sensor angle between each wheel-side communication device and a wheel center is calculated based on the circumferential and radial accelerations. The second control unit specifies the wheel to which each wheel side communication device is attached, based on the accumulated angle of a change in the sensor angle or a magnitude of the accumulated angle.