Integrated drive system and electric vehicle
AssigneeRobert Bosch GmbH
InventorsQilin Huang, Luhan Zu
Life of this patent
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Abstract
An integrated drive system that includes a motor having a housing and an output shaft is disclosed. The integrated drive system further includes a planetary gear transmission mechanism having a first-stage planetary gear mechanism and a second-stage planetary gear mechanism. The first output torque of the first-stage planetary gear mechanism is transmitted to a driven object. The second output torque of the first-stage planetary gear mechanism is transmitted to the second-stage planetary gear mechanism. And the third output torque of the second-stage planetary gear mechanism is transmitted to the driven object. An electric vehicle that includes the described integrated drive system is also disclosed.
Claims15
An integrated drive system, comprising:
- an electric machine having a housing and an output shaft;
- a planetary gear transmission mechanism having a first-stage planetary gear mechanism and a second-stage planetary gear mechanism configured such that torque is distributed across the first-and second-stage planetary gear mechanisms;
- and
- a wheel comprising a rim and a cover plate that is fixedly connected to the rim,
- wherein the first-stage planetary gear mechanism is configured to output a first output torque that is transmitted to the wheel and a second output torque that is transmitted to the second-stage planetary gear mechanism,
- wherein the second-stage planetary gear mechanism is configured to output a third output torque that is transmitted to the wheel,
- wherein the planetary gear transmission mechanism is mounted in a space enclosed by the rim, and
- wherein a brake disk is mounted on a side of the cover plate facing toward the electric machine.
An integrated drive system, comprising:
- an electric machine having a housing and an output shaft;
- a planetary gear transmission mechanism having a first-stage planetary gear mechanism and a second-stage planetary gear mechanism;
- and
- a wheel comprising a rim and a cover plate that is fixedly connected to the rim, wherein:
- a first output torque of the first-stage planetary gear mechanism is transmitted to the wheel,
- a second output torque of the first-stage planetary gear mechanism is transmitted to the second-stage planetary gear mechanism,
- a third output torque of the second-stage planetary gear mechanism is transmitted to the wheel,
- the first-stage planetary gear mechanism includes:
- a first-stage sun gear,
- first-stage planet gears meshed with the first-stage sun gear,
- a first-stage ring gear meshed with the first-stage planet gears, and
- a first-stage planet gear carrier supporting the first-stage planet gears,
- the second-stage planetary gear mechanism includes:
- a second-stage sun gear,
- second-stage planet gears meshed with the second-stage sun gear,
- a second-stage ring gear meshed with the second-stage planet gears, and
- a second-stage planet gear carrier supporting the second-stage planet gears,
- the output shaft of the electric machine is fixedly connected to the first-stage sun gear,
- the first-stage planet gear carrier is configured to be fixedly connected to the wheel,
- the first-stage ring gear is fixedly connected to the second-stage sun gear,
- the second-stage planet gear carrier is fixedly connected to the housing of the electric machine,
- the second-stage ring gear is configured to be fixedly connected to or integrally formed with the wheel,
- the planetary gear transmission mechanism is mounted in a space enclosed by the rim, and
- a brake disk is mounted on a side of the cover plate facing toward the electric machine.
Dependencies are inferred from the claim text.