Vehicle control device

A vehicle control device comprising:

• a tire-side device including
• a vibration detection unit attached to a back side of a tread of a tire fitted to a tire wheel mounted on a vehicle that outputs a detection signal corresponding to a magnitude of a vibration of the tire in a tangential direction to a rotation direction of the tire and that generates electrical power from the vibration of the tire,
• a signal processing unit that generates μ data by processing the detection signal outputted from the vibration detection unit, the μ data representing a friction coefficient between the tire and a road surface,
• a transmitter that transmits the μ data, and
• a power supply circuit that receives and stores the electrical power generated by the vibration detection unit and that supplies electrical power to the signal processing unit and the transmitter;
• and
• a vehicle-side device including
• a receiver that receives the μ data transmitted from the transmitter and
• a travel control unit including
• a friction coefficient estimation unit that estimates the friction coefficient based on the μ data,
• a braking distance estimation unit that acquires a braking distance of the vehicle based on the friction coefficient, and
• an acceleration deceleration control unit that controls acceleration and deceleration of the vehicle based on the braking distance.