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CN-121973802-A - Method for determining the operating state of at least one sensor in a vehicle and control unit therefor

CN121973802ACN 121973802 ACN121973802 ACN 121973802ACN-121973802-A

Abstract

A method of determining an operating state of at least one sensor in a vehicle and a control unit therefor are provided. In step S1, during a driving cycle of the vehicle 11, data from at least one sensor 12 in the vehicle 11 is received, and the received data is stored in the cloud repository 14. In step S2, the stored sensor data are analyzed and the operating mode of the at least one sensor 12 is determined by the control unit 10. In step S3, a change in the operating state of the at least one sensor 12 is determined when the received sensor data differs from the operating range. In step S4, the failure duration of the at least one sensor 12 is predicted based on the detected change, and the predicted failure of the at least one sensor 12 is transmitted to the user of the vehicle 11.

Inventors

  • D. C. Karunendra
  • D. Venkatesh
  • T. Rashman South

Assignees

  • 罗伯特·博世有限公司
  • 博世环球软件科技私人有限公司

Dates

Publication Date
20260505
Application Date
20251028
Priority Date
20241030

Claims (9)

  1. 1. A control unit (10) for determining an operating state of at least one sensor (12) in a vehicle (11), the control unit (10) being configured to: -receiving data from at least one sensor (12) in the vehicle (11) during a driving cycle of the vehicle (11) and storing the received data in a cloud repository (14); -analysing the stored sensor data and determining an operating mode of the at least one sensor (12); -detecting a change in the operating state of at least one sensor (12) when the received sensor data is different from the operating range; -predicting a duration of failure of the at least one sensor (12) based on the detected change and communicating the predicted failure of the at least one sensor (12) to a user of the vehicle (11).
  2. 2. The control unit (10) according to claim 1, wherein the data received from the at least one sensor (12) comprises an operating value at a given point in time, terrain information, atmospheric information, engine temperature of the vehicle (11).
  3. 3. The control unit (10) according to claim 1, wherein the change in the operating state of the at least one sensor (12) is any one of a change from a minimum value of the operating range and a change from a maximum value of the operating range.
  4. 4. A control unit (10) according to claim 3, wherein the sub-processor (16) of the control unit (10) determines the fault duration based on the detected changes as described above.
  5. 5. The control unit (10) according to claim 1, wherein an alarm is generated based on the duration of the failure of at least one sensor (12) and is communicated to the user using any one of the communication means (18).
  6. 6. The control unit (10) according to claim 1, wherein the control unit (10) is located in a form comprising any one of an integrated component in the vehicle (11), a mobile application in a communication device (20) being a user of the vehicle (11), a processor at a service center of the vehicle (11).
  7. 7. The control unit (10) according to claim 1, wherein the control unit (10) is adapted to correct an offset value of at least one sensor (12) in the vehicle (11), which offset value occurs due to degradation of the at least one sensor (12).
  8. 8. A method of determining an operating state of at least one sensor (12) in a vehicle (11) by a control unit (10), the method comprising the steps of: -receiving data from at least one sensor (12) in the vehicle (11) during a driving cycle of the vehicle (11) and storing the received data in a cloud repository (14); -analysing the stored sensor data by the control unit (10) and determining an operating mode of the at least one sensor (12); -detecting a change in the operating state of at least one sensor (12) when the received sensor data is different from the operating range; -predicting a duration of failure of the at least one sensor (12) based on the detected change and communicating the predicted failure of the at least one sensor (12) to a user of the vehicle (11).
  9. 9. The method according to claim 8, wherein an offset value of at least one sensor (12) in the vehicle (11) is corrected by the control unit (10), said offset value occurring due to degradation of the at least one sensor (12).

Description

Method for determining the operating state of at least one sensor in a vehicle and control unit therefor Technical Field The invention relates to a method for determining the operating state of at least one sensor in a vehicle and a control unit therefor. Background Most vehicles include a number of components that require repair or replacement at least once during the service life of the vehicle. For components that affect the performance, reliability or safety of the vehicle, it is particularly important to repair or replace them before they reach the end of their useful life, that is to say before they fail and cause inconvenience or accidents and all the economic consequences that result therefrom. In order to avoid component failure and improve reliability, vehicles are currently maintained primarily based on fixed mileage intervals or fixed time intervals set by the vehicle manufacturer. But the different use of each vehicle by its driver means that the mileage or time interval may not be appropriate-too long for some people and too short for others. WO2023098040 patent application discloses a diagnostic method for radar point cloud anomalies, a vehicle control method based on laser radar service life prediction and a fault control method for unmanned vehicles. Based on different thresholds set for different scenes, determining an abnormal level, a current failure rate level and a sensor failure level of the radar, and then determining a corresponding vehicle control strategy, so that traffic inconvenience and traffic accidents caused by emergency on-site parking of the vehicle are avoided, and the safety of the vehicle is improved. The invention further relates to a diagnostic device for radar point cloud anomalies, a vehicle control device based on laser radar life prediction, a fault control device for an unmanned vehicle, a computer-readable storage medium, a controller and a vehicle. Drawings FIG. 1 illustrates a control unit for determining an operating state of at least one sensor in a vehicle, in accordance with an embodiment of the present invention, and Fig. 2 illustrates a method of determining an operating state of at least one sensor in a vehicle in accordance with the present invention. Detailed Description Fig. 1 illustrates a control unit for determining an operating state of at least one sensor in a vehicle according to one embodiment of the invention. The control unit 10 receives data from at least one sensor 12 in the vehicle 11 during a driving cycle of the vehicle 11 and stores the received data in the cloud repository 14. Then, the control unit 10 analyzes the stored sensor data and determines an operation mode of the at least one sensor 12, and detects a change in the operation state of the at least one sensor 12 when the received sensor data is different from the operation range. The control unit 10 then predicts a duration of failure of the at least one sensor 12 based on the detected change and communicates the predicted failure of the at least one sensor 12 to a user of the vehicle 11. Furthermore, the structure and components of the arrangement for detecting the operational state of the at least one sensor 12 are described in detail. The control unit 10 is an operating device for processing and storing information received from at least one sensor 12. The control unit 10 is selected from a group of control units comprising a microprocessor, microcomputer, microcontroller, digital signal processor, central processing unit, state machine, logic circuitry, one or more microchips or integrated circuits interconnected using a motherboard, hardwired logic, software stored by a memory device and executed by a microprocessor, firmware, an Application Specific Integrated Circuit (ASIC), and/or a Field Programmable Gate Array (FPGA), and/or any component that operates on signals based on operational instructions. It should be noted that the control unit 10 may be of any other type, but is not limited to the above-described devices known to a person skilled in the art. The data received from the at least one sensor 12 includes operating values at a given point in time, terrain information, atmospheric information, temperature of the vehicle engine. The at least one sensor 12 is selected from a group of sensors comprising inertial sensors, tilt sensors, acceleration sensors, proximity sensors, speed sensors, temperature sensors, etc. It should be noted, however, that the type of sensor 12 is not limited to the above-described type, but may be any other type known in the art and connected to at least one component of the vehicle 11. For example, the inclination sensor 12 provides inclination information of the vehicle 11 when moving on a specific type of road. By this value, the control unit 10 can detect information of the road type on which the vehicle 11 is moving. The information includes topographical information such as hilly terrain, driving at sea, planar roads, desert areas, et