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公开(公告)号：US20240295420A1
公开(公告)日：2024-09-05
申请号：US18664682
申请日：2024-05-15
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jie LUO , Donghao LIU , Qiang GU , Yuzheng ZHUANG , Yongsheng ZHANG
IPC: G01D18/00
CPC classification number: G01D18/00
Abstract: Embodiments of this application disclose a calibration method, apparatus, and system, and relate to the calibration field, to improve calibration efficiency of a new energy vehicle and an intelligent vehicle, and reduce calibration costs. A specific solution is as follows: First, an observation signal of a to-be-tested system is obtained. Next, a corresponding performance index is calculated based on the observation signal of the to-be-tested system. Then, an updated calibration parameter is obtained by using an optimization algorithm based on the performance index, a constraint condition, and at least one objective function, where the objective function indicates a function relationship between performance indexes. Finally, the updated calibration parameter is sent to a controller.
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公开(公告)号：US20230331205A1
公开(公告)日：2023-10-19
申请号：US18340530
申请日：2023-06-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Benben CHAI , Fengyu LIU , Yongsheng ZHANG
CPC classification number: B60T13/588 , B60T13/142 , B60T8/17 , B60T1/005 , F16D65/16 , F15B15/26 , F15B15/1428 , F15B15/1447 , F16D2127/06
Abstract: A hydraulic apparatus is disclosed, which includes a hydraulic cylinder body, a piston, a push assembly, and a first sealing component; the hydraulic cylinder body is of a hollow cylinder shape, provided with a first opening and a second opening respectively at two ends; the piston is disposed in the hydraulic cylinder body and is located at the first opening; the first sealing component covers the second opening; the hydraulic cylinder body, the piston, and the first sealing component are configured to form a hydraulic chamber; the hydraulic cylinder body is provided with a liquid flow opening which is located between the first sealing component and the piston; and the piston is configured to be enabled to move in the hydraulic cylinder body, driven by the push assembly.
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公开(公告)号：US20230092225A1
公开(公告)日：2023-03-23
申请号：US17992384
申请日：2022-11-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Weimiao YANG , Yongsheng ZHANG , Yuhao LU , Guangyi WANG
Abstract: A hydraulic control unit is provided, including a hydraulic control apparatus with a bidirectional pressurization function, where the hydraulic control apparatus includes a second hydraulic chamber and a first hydraulic chamber. The second hydraulic chamber provides a braking force for a first group of wheel cylinders through a first brake line provided with a first control valve. The first hydraulic chamber provides a braking force for a second group of wheel cylinders through a second brake line provided with a second control valve.
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公开(公告)号：US20230077277A1
公开(公告)日：2023-03-09
申请号：US17985347
申请日：2022-11-11
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Weimiao YANG , Yongsheng ZHANG , Biao JIN , Wei ZHANG
Abstract: This application provides a hydraulic adjustment unit, a brake system, an automobile, and a control method, to individually pressurize any brake pipe in a dual circuit brake pipe, to improve safety of a dual circuit brake system. This application is applicable to an intelligent car, a new energy car, a conventional car, or the like. In embodiments of this application, a second hydraulic chamber provides a braking force for a first group of brake wheel cylinders and through a first brake pipe provided with a first control valve, and provides a braking force for a second group of brake wheel cylinders and through a second brake pipe provided with a second control valve.
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Patent Agency Ranking
公开(公告)号：US20220144293A1
公开(公告)日：2022-05-12
申请号：US17583588
申请日：2022-01-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zixian WU , Yongsheng ZHANG , Wei ZHANG
IPC: B60W50/02 , B60W40/08 , B60W50/038 , B60W50/14
Abstract: A pedal fault diagnosis method and apparatus for a vehicle are provided, including: detecting whether a driver seat is in an unmanned state; collecting an actual zero position voltage of a pedal when the driver seat is in the unmanned state; and then determining, based on the actual zero position voltage, whether a zero position fault exists on the pedal. The apparatus may update a set value of a zero position voltage in a vehicle controller based on the actual zero position voltage that is collected when the driver seat is in the unmanned state, and may be applied to the fields of assisted driving and automatic driving. Vehicle control safety can be improved by using the actual zero position voltage that is collected when the driver seat is in the unmanned state.
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公开(公告)号：US20210269018A1
公开(公告)日：2021-09-02
申请号：US17326006
申请日：2021-05-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Donghao LIU , Yongsheng ZHANG , Wei ZHANG
IPC: B60W30/045 , B60W40/103 , B60W40/114
Abstract: A vehicle stability control method and a vehicle stability control device are provided. The method may be applied to an intelligent automobile field such as intelligent driving or autonomous driving, and is used to control lateral stability of a front axis and rear axis distributed driven vehicle. In this method, a yawing movement of the vehicle is considered, and an additional yawing moment for maintaining lateral stability of the vehicle is provided by compensating for front-axis and rear-axis slip ratios, to control lateral stability of the vehicle and therefore improve stability of the vehicle during driving.
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公开(公告)号：US20230033528A1
公开(公告)日：2023-02-02
申请号：US17964569
申请日：2022-10-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Weimiao YANG , Yongsheng ZHANG , Donghao LIU , Wei ZHANG
IPC: B60T11/224 , B60T11/18 , B60T11/22
Abstract: A hydraulic adjustment unit of a brake system in a vehicle includes a first fluid reservoir (29), a second fluid reservoir (2), a first oil return pipe (110), and a second oil return pipe (120). The first oil return pipe (110) is connected to wheel cylinders (151, 152) of a vehicle, so that brake fluid in the wheel cylinders (151, 152) of the vehicle is delivered to the first fluid reservoir (29), to depressurize wheels of the vehicle. The second oil return pipe (120) is configured to connect to the wheel cylinders (151, 152) of the vehicle through oil inlet pipes (130, 140) of a brake system, so that the brake fluid in the wheel cylinders (151, 152) of the vehicle is delivered to the second fluid reservoir (2) through the oil inlet pipes (130, 140) of the brake system, to depressurize the wheels of the vehicle.
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公开(公告)号：US20240132039A1
公开(公告)日：2024-04-25
申请号：US18398614
申请日：2023-12-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Weimiao YANG , Shangwei LV , Yongsheng ZHANG , Yuhao LU
CPC classification number: B60T13/662 , B60T13/686 , B60T17/221 , B60T2270/404
Abstract: This application provides a brake-by-wire system and a control method. This application is applicable to an intelligent vehicle, a new energy vehicle, a conventional vehicle, or the like. The braking control system includes: a brake master cylinder, a first pressure booster, a second pressure booster, at least one second control valve, at least one third control valve, at least one fourth control valve, and a second pedal feel simulation system. When a master brake system fails, a redundant brake system can independently control each brake wheel cylinder, to implement function backup for a master brake system, meeting requirements for braking functions such as ABS/AEB/ESC/TCS of a vehicle. The redundant brake system can further improve safety of the brake system and ensure pedal experience of a driver, thereby bringing more stable and comfortable driving experience to the driver.
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9.发明申请公开(公告)号：US20230071109A1
公开(公告)日：2023-03-09
申请号：US17985486
申请日：2022-11-11
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yongsheng ZHANG , Weimiao YANG , Wei ZHANG
Abstract: This application is applicable to intelligent automobiles, new energy automobiles, conventional automobiles, or the like. In embodiments of this application, a fluid outlet pipe of a first hydraulic chamber 16 is configured in segments on a push rod support portion 14 and a push rod 13. In this way, when a piston 12 is located at an inner stop point of a piston stroke, a first hydraulic adjustment port 14a located on the push rod support portion 14 communicates with a second hydraulic adjustment port 13a located on the push rod 13, and when the piston 12 is located at a position other than the inner stop point in the piston stroke, the first hydraulic adjustment port 14a does not communicate with the second hydraulic adjustment port 13a.
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