Patents by Inventor Wenwu MA
Wenwu MA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20240123821Abstract: A powertrain system and an electric vehicle to reduce a structure size of the powertrain system. The powertrain system includes two subsystems. The two subsystems are disposed side by side in a first direction and are symmetrical to each other. Each of the subsystems includes a motor, a deceleration mechanism, and an output shaft. A rotation shaft of the motor is disposed in a second direction. The deceleration mechanism includes a cylindrical gear pair and a bevel gear pair. The cylindrical gear pair includes an active cylindrical gear and a driven cylindrical gear, and the active cylindrical gear is connected to the rotation shaft of the motor. The driven cylindrical gear is located on a side that is of the active cylindrical gear and that is away or distal from the other subsystem. The bevel gear pair includes an active bevel gear and a driven bevel gear.Type: ApplicationFiled: December 22, 2023Publication date: April 18, 2024Applicant: Huawei Digital Power Technologies Co., Ltd.Inventors: Zhengyi TANG, Wenwu MA, Jingzhou WEI, Yi CAO
-
Publication number: 20240112654Abstract: Embodiments of the present disclosure provide a harmony processing method and apparatus, a device, and a medium, and the method includes: acquiring a harmonic interval corresponding to a target harmony control in response to a triggering operation on the target harmony control; performing, according to the harmonic interval, sound modification processing on a first sound input originally to obtain a second sound, in which an interval between the first sound and the second sound is the harmonic interval; and generating a target audio according to the first sound and the second sound, wherein the first sound and the second sound are presented as different harmonic parts in the target audio.Type: ApplicationFiled: December 12, 2023Publication date: April 4, 2024Inventors: Ye MA, Xuzhou YE, Wenwu LIU
-
Patent number: 11909277Abstract: A motor includes a grounding ring and a first sealing piece, or includes a grounding ring, a first sealing piece, and a second sealing piece. The grounding ring is electrically coupled to a rotating shaft and a housing. The grounding ring is made of a material with good conduction performance, hence, a shaft induced voltage transmitted on the rotating shaft is transmitted to the housing through the grounding ring, instead of being transmitted to the housing through a motor bearing.Type: GrantFiled: March 30, 2022Date of Patent: February 20, 2024Assignee: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.Inventors: Zhenxing Chen, Guoquan Yu, Wenwu Ma, Chao Cao
-
Patent number: 11863029Abstract: Embodiments of this application provide a motor rotor, a motor, and a vehicle. A conductive pillar passes through an inner ring of a conductive bearing, an outer wall of the conductive pillar interference fits with the inner ring of the conductive bearing, and an end of the conductive pillar is grounded. In this way, it is ensured that a shaft current on a rotor body is discharged by using the conductive bearing and the conductive pillar, to prevent a main bearing of the motor rotor from being electrically corroded by the shaft current. In addition, the conductive bearing is sleeved on the grounded conductive pillar, so that the inner ring of the conductive bearing can interference fit with the outer wall of the conductive pillar.Type: GrantFiled: December 20, 2021Date of Patent: January 2, 2024Assignee: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.Inventors: Zhiqi Wei, Chao Cao, Lang Lv, Wenwu Ma, Ke Wang
-
Publication number: 20230249537Abstract: In a vehicle drive system, a hybrid drive manner of dual hub drive assemblies and a centralized drive assembly/dual independent drive assemblies are used. When the vehicle travels at a constant speed with a small torque, the dual hub drive assemblies are used to drive the vehicle. When the vehicle accelerates startup or accelerates to overtake, a large torque is required, and the centralized drive assembly/dual independent drive assemblies is/are used to drive the vehicle, or the centralized drive assembly/dual independent drive assemblies and the dual hub drive assemblies are used together to drive the vehicle. Therefore, the vehicle drive system provided uses the hybrid drive manner of dual hub drive assemblies and the centralized drive assembly/dual independent drive assemblies.Type: ApplicationFiled: April 14, 2023Publication date: August 10, 2023Inventors: Wenwu Ma, Xiaode Yin
-
Publication number: 20230060173Abstract: An automotive propulsion system. Both a compressor and a first retarder in a first propulsion system are connected to a first motor, so that the compressor and the first retarder can share a same power source. This can reduce a weight and costs of the automobile and improve use efficiency of the motor to save energy. In the first propulsion system, a first disconnector is disposed to implement a connection or disconnection between the first motor and the first retarder, and a second disconnector is disposed to implement a connection or disconnection between the first motor and the compressor. This can implement independent operation of the first retarder and the compressor. In addition, when a first propulsion system does not provide power, the first disconnector is opened, to prevent the first motor in the first propulsion system from being reversely dragged. This reduces an energy loss.Type: ApplicationFiled: August 22, 2022Publication date: March 2, 2023Applicant: Huawei Digital Power Technologies Co., Ltd.Inventors: Zhengyi TANG, Wenwu MA, Jingzhou WEI
-
Publication number: 20220262174Abstract: This application provides a vehicle and a control system for a vehicle. The control system includes a plurality of domain controllers and a central controller. The central controller includes a plurality of first central communications interfaces, each of the plurality of domain controllers includes a first domain communications interface, and the plurality of first central communications interfaces and a plurality of first domain communications interfaces form a plurality of communications interface pairs. The central controller communicates with the plurality of domain controllers through the plurality of communications interface pairs respectively. The control system provided in embodiments of this application can form communication redundancy between the central controller of the vehicle and the at least two domain controllers, to improve security of the control system for the vehicle.Type: ApplicationFiled: April 29, 2022Publication date: August 18, 2022Inventors: Tianmin SHEN, Wenwu MA, Zhengyi TANG
-
Publication number: 20220255407Abstract: This application provides a motor, a power assembly, and a motor drive device. In this application, the motor includes a grounding ring and a first sealing piece, or includes a grounding ring, a first sealing piece, and a second sealing piece. The grounding ring is electrically connected to a rotating shaft and a housing. Because the grounding ring is made of a material with good conduction performance, a shaft induced voltage transmitted on the rotating shaft can be transmitted to the housing through the grounding ring, instead of being transmitted to the housing through a motor bearing, thereby avoiding bearing electric corrosion of the motor bearing.Type: ApplicationFiled: March 30, 2022Publication date: August 11, 2022Inventors: Zhenxing Chen, Guoquan Yu, Wenwu Ma, Chao Cao
-
Publication number: 20220224197Abstract: This application provides a motor, including a housing, a shaft bearing, a motor shaft, a first sealing member, a conductive post, a conductive bearing, a second sealing member, and a conductive connecting member. The motor shaft is rotatably installed on the housing through the shaft bearing. A part of the motor shaft is located inside the housing, and the motor shaft has a cavity. The first sealing member, the conductive bearing, the second sealing member, the conductive post, and the conductive connecting member are all located inside the housing. The first sealing member, the conductive bearing, and the second sealing member are located inside the cavity. According to the solutions of this application, the shaft bearing can be prevented from electric corrosion, and reliability of the shaft bearing can be ensured.Type: ApplicationFiled: March 31, 2022Publication date: July 14, 2022Inventors: Guoquan YU, Zhenxing CHEN, Wenwu MA, Chao CAO
-
Publication number: 20220216772Abstract: Embodiments of this application provide a motor rotor, a motor, and a vehicle. A conductive pillar passes through an inner ring of a conductive bearing, an outer wall of the conductive pillar interference fits with the inner ring of the conductive bearing, and an end of the conductive pillar is grounded. In this way, it is ensured that a shaft current on a rotor body is discharged by using the conductive bearing and the conductive pillar, to prevent a main bearing of the motor rotor from being electrically corroded by the shaft current. In addition, the conductive bearing is sleeved on the grounded conductive pillar, so that the inner ring of the conductive bearing can interference fit with the outer wall of the conductive pillar.Type: ApplicationFiled: December 20, 2021Publication date: July 7, 2022Inventors: Zhiqi WEI, Chao CAO, Lang LV, Wenwu MA, Ke WANG
-
Publication number: 20220209616Abstract: This application describes a motor that includes a housing, an output shaft, a conductive bearing, and a conductive component. The output shaft is disposed in the housing. A positioning hole is disposed on an end face of a first end of the output shaft, and the positioning hole is disposed coaxially with the output shaft. The conductive bearing is disposed in the positioning hole, and includes an inner ring, and an outer ring that is fixedly connected to the output shaft. One end of the conductive component is fixedly connected to the inner ring of the conductive bearing, and the other end is connected to the housing. In this application, the motor can output, by using the conductive bearing and the conductive component, charges accumulated in the output shaft, to eliminate a generated common-mode voltage.Type: ApplicationFiled: December 2, 2021Publication date: June 30, 2022Inventors: Ke WANG, Shenghai JIANG, Lang LV, Zhiqi WEI, Guojie XU, Senlin MA, Wenwu MA