US-12617304-B2 - Integrated controller, electric drive assembly, and vehicle

US12617304B2US 12617304 B2US12617304 B2US 12617304B2US-12617304-B2

Abstract

An integrated controller includes: a box; a controller and a charging/discharging converter disposed in the box; and a high-voltage interface assembly including a high-voltage interface disposed on the box and a high-voltage connector disposed in the box. The high-voltage connector is connected with the high-voltage interface, the controller, and the charging/discharging converter to receive and distribute a high-voltage battery signal.

Inventors

Caifang GUO
Axi Qi
Jian Liu
Jian Gao
Lele LI

Assignees

BYD COMPANY LIMITED

Dates

Publication Date: 20260505
Application Date: 20231130
Priority Date: 20210804

Claims (17)

1 . An integrated controller, comprising: a box; a controller and a charging/discharging converter disposed in the box; a high-voltage interface assembly, comprising a high-voltage interface disposed on the box and a high-voltage connector disposed in the box, the high-voltage connector connected with the high-voltage interface, the controller, and the charging/discharging converter to receive and distribute a high-voltage battery signal, and the high-voltage interface assembly comprising a first high-voltage interface, a second high-voltage interface, and a third high-voltage interface disposed on the box, a first connector, a second connector, a third connector, and a fourth connector, wherein: the first high-voltage interface is configured to receive the high-voltage battery signal; the first connector is connected with the first high-voltage interface and the second high-voltage interface; the second connector is connected with the first high-voltage interface and an on-board charger of the charging/discharging converter; the third connector is connected with an motor controller of the controller; and the fourth connector is connected with the first high-voltage interface and the third high-voltage interface; and a low-voltage connector disposed in the box, and connected with the controller and the charging/discharging converter to receive a low-voltage power signal and a transmission communication signal.
2 . The integrated controller according to claim 1 , wherein the controller further comprises a vehicle controller and a battery management controller; and the charging/discharging converter further comprises a direct current (DC) converter.
3 . The integrated controller according to claim 2 , wherein the motor controller, the vehicle controller, and the battery management controller are integrated in a first digital signal processing chip; the DC converter is disposed on a second digital signal processing chip; and the on-board charger is disposed on a third digital signal processing chip.
4 . The integrated controller according to claim 3 , further comprising: a first power unit, connected with the first digital signal processing chip to convert the low-voltage power signal into a first power supply signal provided to the first digital signal processing chip; and a second power unit, connected with the second digital signal processing chip and the third digital signal processing chip to convert the low-voltage power signal into a second power supply signal provided to the second digital signal processing chip and the third digital signal processing chip.
5 . The integrated controller according to claim 4 , further comprising: an inlet filter connected with the low-voltage connector, the first power unit, and the second power unit to filter the low-voltage power signal.
6 . An electric drive assembly, comprising: an integrated controller, configured to send a heating control signal in response to a heating demand of a vehicle; and a motor and a motor driver, the motor driver connected with the integrated controller and the motor to drive the motor to generate heat in response to the heating control signal; wherein the integrated controller comprises: a box; a controller and a charging/discharging converter disposed in the box; a high-voltage interface assembly, comprising a high-voltage interface disposed on the box and a high-voltage connector disposed in the box, the high-voltage connector connected with the high-voltage interface, the controller, and the charging/discharging converter to receive and distribute a high-voltage battery signal, and the high-voltage interface assembly comprising a first high-voltage interface, a second high-voltage interface, and a third high-voltage interface disposed on the box, a first connector, a second connector, a third connector, and a fourth connector, wherein: the first high-voltage interface is configured to receive the high-voltage battery signal; the first connector is connected with the first high-voltage interface and the second high-voltage interface; the second connector is connected with the first high-voltage interface and an on-board charger of the charging/discharging converter; the third connector is connected with a motor controller of the controller; and the fourth connector is connected with the first high-voltage interface and the third high-voltage interface; and a low-voltage connector disposed in the box, and connected with the controller and the charging/discharging converter to receive a low-voltage power signal and a transmission communication signal.
7 . The electric drive assembly according to claim 6 , further comprising a speed reducer connected with the integrated controller.
8 . The electric drive assembly according to claim 6 , wherein the controller further comprises a vehicle controller and a battery management controller; and the charging/discharging converter further comprises a direct current (DC) converter.
9 . The electric drive assembly according to claim 8 , wherein the motor controller, the vehicle controller, and the battery management controller are integrated in a first digital signal processing chip; the DC converter is disposed on a second digital signal processing chip; and the on-board charger is disposed on a third digital signal processing chip.
10 . The electric drive assembly according to claim 9 , wherein the integrated controller comprises: a first power unit, connected with the first digital signal processing chip to convert the low-voltage power signal into a first power supply signal provided to the first digital signal processing chip; and a second power unit, connected with the second digital signal processing chip and the third digital signal processing chip to convert the low-voltage power signal into a second power supply signal provided to the second digital signal processing chip and the third digital signal processing chip.
11 . The electric drive assembly according to claim 10 , wherein the integrated controller comprises: an inlet filter connected with the low-voltage connector, the first power unit, and the second power unit to filter the low-voltage power signal.
12 . A vehicle, comprising a power battery and an electric drive assembly, wherein the electric drive assembly comprises: an integrated controller, configured to send a heating control signal in response to a heating demand of the vehicle; and a motor and a motor driver, the motor driver connected with the integrated controller and the motor to drive the motor to generate heat in response to the heating control signal; wherein the integrated controller comprises: a box; a controller and a charging/discharging converter disposed in the box; a high-voltage interface assembly, comprising a high-voltage interface disposed on the box and a high-voltage connector disposed in the box, the high-voltage connector connected with the high-voltage interface, the controller, and the charging/discharging converter to receive and distribute a high-voltage battery signal, and the high-voltage interface assembly comprising a first high-voltage interface, a second high-voltage interface, and a third high-voltage interface disposed on the box, a first connector, a second connector, a third connector, and a fourth connector, wherein: the first high-voltage interface is configured to receive the high-voltage battery signal; the first connector is connected with the first high-voltage interface and the second high-voltage interface; the second connector is connected with the first high-voltage interface and an on-board charger of the charging/discharging converter; the third connector is connected with a motor controller of the controller; and the fourth connector is connected with the first high-voltage interface and the third high-voltage interface; and a low-voltage connector disposed in the box, and connected with the controller and the charging/discharging converter to receive a low-voltage power signal and a transmission communication signal.
13 . The vehicle according to claim 12 , wherein the electric drive assembly comprises a speed reducer connected with the integrated controller.
14 . The vehicle according to claim 12 , wherein the controller further comprises a vehicle controller and a battery management controller; and the charging/discharging converter further comprises a direct current (DC) converter.
15 . The vehicle according to claim 14 , wherein the motor controller, the vehicle controller, and the battery management controller are integrated in a first digital signal processing chip; the DC converter is disposed on a second digital signal processing chip; and the on-board charger is disposed on a third digital signal processing chip.
16 . The vehicle according to claim 15 , wherein the integrated controller comprises: a first power unit, connected with the first digital signal processing chip to convert the low-voltage power signal into a first power supply signal provided to the first digital signal processing chip; and a second power unit, connected with the second digital signal processing chip and the third digital signal processing chip to convert the low-voltage power signal into a second power supply signal provided to the second digital signal processing chip and the third digital signal processing chip.
17 . The vehicle according to claim 16 , wherein the integrated controller comprises: an inlet filter connected with the low-voltage connector, the first power unit, and the second power unit to filter the low-voltage power signal.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a Continuation Application of International Patent Application No. PCT/CN2022/099423, filed on Jun. 17, 2022, which is based on and claims priority to and benefits of Chinese Patent Application No. 202110889134.3, filed on Aug. 4, 2021. The entire content of all of the above-referenced applications is incorporated herein by reference. FIELD The present disclosure relates to the field of vehicle technologies, and more particularly, to an integrated controller, an electric drive assembly, and a vehicle. BACKGROUND In the related art, an electric drive assembly has multiple integration manners, for example, a motor controller and a DC/DC converter are integrated into one piece, or a motor, a motor controller, and a speed reducer are integrated into one piece, or a DC/DC converter, an on-board controller (OBC), and a power distribution unit (PDU) are integrated into one piece, to save costs in a wiring harness, a support, and the like. However, the above integration is a physical integration solution, where different modules are assembled, and there is less reuse parts of the elements. For example, an integration may include the “power three-in-one” integration manner of a motor, a motor controller, and a speed reducer. The integration needs a signal wiring harness between the integrated “power three-in-one” and a vehicle control unit (VCU), a high-voltage wiring harness between the integrated “power three-in-one” and the PDU, a high-voltage wiring harness between the PDU and each of the DC/DC and the OBC, a signal wiring harness for interaction among the DC, the OBC, and the vehicle, and housings and module fixing supports of these modules. In such an integration, the costs are high, and a layout of components occupies a large space of the vehicle, and a signal interaction transmission speed is slow. SUMMARY The present disclosure resolves at least one of the technical problems existing in the related art. In view of the above, a first aspect of the present disclosure provides an integrated controller. The integrated controller may eliminate arrangement of a high-voltage distribution box, which reduces a demand for a high-voltage wiring harness, reduces costs, and saves vehicle space. A second aspect of the present disclosure provides an electric drive assembly. A third aspect of the present disclosure provides a vehicle. An embodiment of a first aspect of the present disclosure provides an integrated controller, which includes: a box; a controller and a charging/discharging converter disposed in the box; and a high-voltage interface assembly, including a high-voltage interface disposed on the box and a high-voltage connector disposed in the box, the high-voltage connector connected with the high-voltage interface, the controller, and the charging/discharging converter to receive and distribute a high-voltage battery signal. According to the integrated controller in an embodiment of the present disclosure, the control unit or controller and the charging/discharging conversion unit or charging/discharging converter are disposed in the same box, which reduces use of structural parts and saves costs. In addition, the high-voltage interface assembly is configured to be connected to the control unit and the charging/discharging conversion unit, which may reduce the demand for high-voltage connection members and high-voltage wiring harnesses, and cancel the arrangement of the high-voltage distribution box, save space, and reduce costs. In some embodiments, the control unit includes a motor controller, a vehicle controller, and a battery management controller; and the charging/discharging converter comprises a direct current (DC) converter and an on-board charger. In some embodiments, the high-voltage interface assembly includes a first high-voltage interface, a second high-voltage interface, and a third high-voltage interface disposed on the box, a first connector, a second connector, a third connector, and a fourth connector. The first high-voltage interface is configured to receive the high-voltage battery signal. The first connector is connected with the first high-voltage interface and the second high-voltage interface; the second connector is connected with the DC converter and the on-board charger; the third connector is connected with the motor controller; and the fourth connector is connected with the first high-voltage interface and the third high-voltage interface. In some embodiments, the integrated controller further includes: a low-voltage connector disposed in the box, and connected with the controller and the charging/discharging converter to receive a low-voltage power signal and a transmission communication signal. In some embodiments, the motor controller, the vehicle controller, and the battery management controller are integrated in a first digital signal processing chip; the DC converter is disposed on a second digital signal processing