Drive system of an electric vehicle
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorSeung Wan Yu
Life of this patent
Estimating the term…
Abstract
A drive system of an electric vehicle is disclosed. The vehicle has an arrangement optimized for characteristics of a hydrogen electric truck so as to ensure an available space inside vehicle body frames, thereby allowing a battery, high-voltage electric parts, a hydrogen tank, and the like to be arranged inside the vehicle body frames and increasing space utilization in the vehicle. The drive system includes a motor configured to drive the vehicle, a reducer or a transmission connected to an output side of the motor so as to change a rotational speed of the motor, and a rear axle configured to transmit rotating power output from the reducer or the transmission to vehicle wheels. The motor and the reducer or the transmission together with the rear axle are mounted on a suspension.
Claims15
A drive system of an electric vehicle, the drive system comprising:
- a motor configured to drive the electric vehicle;
- one of a reducer or a transmission connected to an output side of the motor so as to change a rotational speed of the motor;
- a rear axle configured to transmit rotating power output from the one of the reducer or the transmission to vehicle wheels;
- and
- a mounting structure configured to mount and support the motor on left and right lower arms of a suspension and configured to support air springs arranged between the suspension and vehicle body frames,
- wherein the mounting structure comprises:
- a sub-frame installed to connect the left and right lower arms of the suspension;
- and insulators interposed between the sub-frame and the motor, and
- wherein the motor and the one of the reducer or the transmission together with the rear axle are mounted on the suspension.
A drive system of an electric vehicle, the drive system comprising:
- a motor configured to drive the electric vehicle;
- one of a reducer or a transmission connected to an output side of the motor so as to change a rotational speed of the motor;
- and
- a rear axle configured to transmit rotating power output from the one of the reducer or the transmission to vehicle wheels,
- wherein the motor and the one of the reducer or the transmission together with the rear axle are mounted on a suspension,
- wherein the suspension is configured such that mounting brackets are fixedly installed on two vehicle body frames, a stabilizer link is coupled to lower ends of both mounting brackets, lower arms which extend in the forward and backward directions are coupled to left and right sides of the stabilizer link, a sub-frame which extends in the leftward and rightward directions is installed between the left and right lower arms, and
- wherein coupling positions between the lower arms and the sub-frame are set to be located directly under air springs such that the motor and the rear axle are moved together with the suspension by the sub-frame during behavior of the suspension and thus, load applied to parts for connecting the motor, the reducer, and the rear axle is minimized.
Dependencies are inferred from the claim text.