Electric straddled vehicle

Abstract

An electric straddled vehicle which has, despite the fact that the vehicle is a lightweight and inexpensive vehicle using a small-sized, highly versatile motor, the balance of weight in the left-right in the width direction of the vehicle relative to the vehicle body centerline is optimized. An electric motor (250) is disposed within a cantilever swing arm (214) at a position at which, when viewed from a side of the vehicle body, the electric motor is superposed on the region in which a rear wheel (WR) is projected. A motor driver (216) is disposed within the swing arm (214) so as to straddlethe vehicle body centerline (C) at a position in front of the rear wheel (WR) relative to the vehicle body. The motor driver (216) is disposed in such a manner that the position (G2) of the center ofgravity thereof is offset to the side opposite to the side to which the electric motor (250) is offset from the vehicle body centerline (C). The motor driver (216) is provided behind a rocking shaft (215) relative to the vehicle body at a position close to the rocking shaft (215) and is inserted and mounted to a recess (308) open to the upper surface side of the swing arm (214). An FET (316) for conducting and interrupting an electric current to the motor is at least supported on the lower surface of a lid member (264) of the motor driver (216).

Description

technical field [0001] The present invention relates to an electric saddle-riding vehicle, in particular to an electric saddle-riding vehicle that drives driving wheels by an electric motor. Background technique [0002] Conventionally, an electric saddle-riding vehicle is known in which driving wheels are driven by an electric motor. [0003] Patent Document 1 discloses an arrangement in which, in a small electric vehicle having a cantilevered rocker arm that pivotally supports the rear wheel with one arm, the electric motor is divided into two parts by using a speed reducer composed of a planetary gear. The output shaft is arranged at the same position as the axle of the rear wheel, and the control device of the electric motor is housed inside the arm. [0004] In addition, in the electric vehicle described above, the arrangement of the electric motor and the storage battery as a power supply source becomes a major factor in terms of vehicle body layout. [0005] Patent ...

AI Technical Summary

Problems solved by technology

[0010] However, in the electric vehicle described in Patent Document 1, since the rear wheels are driven by a motor coaxially provided with the rear axle, and the drive torque is obtained without a reduction mechanism, a dedicated motor with a large diameter is required, so it is difficult to provide Lightweight and inexpensive electric motorcycle, and since the electric motor and the control unit (motor driver) are housed in one arm provided on the left side of the swing arm in the vehicle width direction, the weight distribution on the left side of the vehicle body is relatively Larger than the right side of the hull resulting in poor weight balance

Then there is the possibility that the rigidity of the rocker arm must also be increased

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