An electric vehicle includes: a body that includes a body frame; a driving module that includes a sub-frame detachable from the body frame, driving wheels, a driving device provided with a motor mounted on the sub-frame and applying driving force to the driving wheels to start or accelerate the elec
An electric vehicle includes: a body that includes a body frame; a driving module that includes a sub-frame detachable from the body frame, driving wheels, a driving device provided with a motor mounted on the sub-frame and applying driving force to the driving wheels to start or accelerate the electric vehicle, a driving-wheel suspension device attached to the sub-frame, a driving-wheel brake device stopping or decelerating the electric vehicle, and some other components; a connection unit that maintains the relative position relationship between the body and driving module upon attachment of the sub-frame to the body frame and connects the body to the driving module with signal lines; and a control unit that controls the driving module under an input signal input from the body side through the signal lines connected with the connection unit.
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1. An electric vehicle propelled by a motor that rotates to drive driving wheels, comprising: a body that includes a body frame;a driving module that includes a sub-frame detachable from the body frame, driving wheels, a driving device provided with a motor mounted on the sub-frame and applying driv
1. An electric vehicle propelled by a motor that rotates to drive driving wheels, comprising: a body that includes a body frame;a driving module that includes a sub-frame detachable from the body frame, driving wheels, a driving device provided with a motor mounted on the sub-frame and applying driving force to the driving wheels to start or accelerate the electric vehicle, a driving-wheel suspension device attached to the sub-frame, a driving module control unit that receives signals from the body and controls driving of the electric vehicle, and a driving-wheel brake device stopping or decelerating the electric vehicle; anda connection unit that maintains the relative position relationship between the body and the driving module upon attachment of the sub-frame to the body frame, and connects the body and the driving module with signal lines. 2. The electric vehicle according to claim 1, comprising a driven module that includes driven wheels and a driven-wheel suspension device. 3. The electric vehicle according to claim 1, wherein the driving module includes a steering device that steers the driving wheels. 4. The electric vehicle according to claim 1, wherein the connection unit includes a body connector provided on the body side and a driving-module connector provided on the driving module side, and the signal lines are connected by coupling the body connector to the driving-module connector. 5. The electric vehicle according to claim 1, wherein the body includes an accelerator pedal or an accelerator lever provided to the body frame, andthe driving module control unit controls the motor under a signal based on the amount that the accelerator pedal is depressed or a signal based on the amount of change in the angle of the accelerator lever, both the signals being input from the body side. 6. The electric vehicle according to claim 1, wherein the body includes a brake pedal or a brake lever provided to the body frame, andthe driving module further includes a driving wheel brake device control unit,the driving wheel brake device control unit controls a driving-wheel brake device under a signal based on the amount that the brake pedal is depressed or a signal based on the amount of change in the angle of the brake lever, both the signals being input from the body side. 7. The electric vehicle according to claim 3, wherein the body includes a steering wheel provided to the body frame, andthe driving module further includes a steering device control unit,the steering device control unit controls the steering device under a signal based on the amount of change in the angle of the steering wheel and input from the body side. 8. The electric vehicle according to claim 2, wherein at least one of the driving-wheel suspension device and the driven-wheel suspension device includes a damper for absorbing shock, andthe damper is actuated or stopped by a motor intended for the damper. 9. The electric vehicle according to claim 3, wherein the driving module includes an inverter used to supply electric power to at least one of the driving device, the driving-wheel brake device, the driving-wheel suspension device, and the steering device. 10. The electric vehicle according to claim 1, wherein the driving module control unit is a microcomputer. 11. The electric vehicle according to claim 1, comprising a battery supplying electric power to the driving module, whereinthe battery is provided in the driving module. 12. The electric vehicle according to claim 1, wherein the body further includes a battery supplying electric power to the driving module,andthe driving module control unit controls electric power supply from the battery provided on the body side to the driving module when the sub-frame is attached to the body frame with the connection unit. 13. The electric vehicle according to claim 1, wherein the body frame and sub-frame include engagement units that are engaged with each other. 14. The electric vehicle according to claim 1, wherein the sub-frame is attached to the body frame with an elastic member interposed therebetween. 15. The electric vehicle according to claim 1, wherein the motor is mounted on the sub frame with an elastic member interposed therebetween. 16. The electric vehicle according to claim 1, wherein the driving module adopts at least one of a two-motor system in which two motors drive the driving wheels provided as a pair of left and right driving wheels, respectively, a one-motor system in which a single motor drives both the left and right driving wheels, and an in-wheel motor system in which two in-wheel motors placed at the interior of the left and right driving wheels drive the left and right driving wheels, respectively.
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