Remote calibration system and method for automobile thermal management controller

Abstract

The invention provides an automobile thermal management controller remote calibration device and method, and belongs to the technical field of automobile controller calibration, the automobile thermal management controller remote calibration device comprises a thermal management controller, a sensor module, a calibration device, a cloud server and a computer, the sensor module collects automobile state information and inputs the automobile state information to the thermal management controller; and the calibration device reads the to-be-calibrated parameters in the thermal management controller. The calibration device transmits to-be-calibrated parameters to the cloud server, and the thermal management controller transmits automobile state information to the cloud server. The cloud server transmits to-be-calibrated parameters input by the calibration device and automobile state information input by the thermal management controller to the computer through a wireless network, an engineer analyzes the to-be-calibrated parameters and the automobile state information through the computer and determines calibration parameters, and then the calibration parameters are transmitted to the calibration device through the cloud server. And the calibration device writes the calibration parameters into the thermal management controller. According to the invention, the calibration time is reduced, the calibration efficiency is improved, and the labor cost is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobile controller calibration, and in particular, relates to a remote calibration system and method for an automobile thermal management controller. Background Art

[0002] Calibration is a very important job in the traditional automotive industry, which often requires a large number of people to carry out calibration work. The programs in the car controller are designed by software engineers, and engineers cannot always set the parameters in the program to the most reasonable values ​​at the beginning, because the parameters will be affected by many uncontrollable factors and cause errors. At this time, the originally set value becomes unreliable.

[0003] Chinese patent 101262194B discloses a hybrid vehicle motor calibration method. After the hybrid vehicle is assembled on the production line, this method is used to calibrate the hybrid auxiliary drive motor with the help of a calibration tool. The calibration tool sends a calibration command to the controller, and the motor controller calls the relevant calibration steps. After the motor parameters are calibrated, they are solidified into the FLASH of the motor controller. When the motor controller executes the control algorithm, when the parameter value is needed, the parameter value in the FLASH is obtained.

[0004] The above patent requires manual on-site calibration, which will result in a long calibration time and low calibration efficiency. Summary of the invention

[0005] The present invention aims to provide a remote calibration system and method for an automobile controller, so as to shorten the automobile calibration time and improve the efficiency.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] The present invention provides a remote calibration system for an automobile thermal management controller, comprising a thermal management controller, a sensor module, a calibration device, a cloud server and a computer, wherein the output end of the sensor module is connected to the input end of the thermal management controller, the output end of the thermal management controller is connected to the cloud server, the output end of the thermal management controller is connected to the input end of the calibration device, the output end of the calibration device is connected to the input end of the cloud server, the output end of the cloud server is connected to the input end of the computer, the output end of the computer is connected to the input end of the cloud server, the output end of the cloud server is connected to the input end of the calibration device, and the output end of the calibration device is connected to the input end of the thermal management controller.

[0008] The sensor module outputs vehicle status information to the thermal management controller, the thermal management controller outputs vehicle status information to the cloud server, the thermal management controller outputs parameters to be calibrated to the calibration device, the calibration device outputs parameters to be calibrated to the cloud server, the cloud server outputs parameters to be calibrated and vehicle status information to the computer, the computer outputs calibration parameters to the cloud server, the cloud server outputs calibration parameters to the calibration device, and the calibration device outputs calibration parameters to the thermal management controller.

[0009] The thermal management controller adopts a microcontroller.

[0010] The sensor module includes an in-vehicle temperature sensor, a battery temperature sensor and a coolant temperature sensor.

[0011] The present invention provides a remote calibration method for an automobile thermal management controller, which is characterized by:

[0012] Step 1: The sensor module collects vehicle status information and inputs it into the thermal management controller, and the calibration device reads the parameters to be calibrated in the thermal management controller;

[0013] Step 2: The calibration device transmits the parameters to be calibrated input by the thermal management controller to the cloud server via the wireless network, and the thermal management controller transmits the vehicle status information to the cloud server via the wireless network;

[0014] Step 3: The cloud server transmits the parameters to be calibrated input by the calibration device and the vehicle status information input by the thermal management controller to the computer via the wireless network. The engineer analyzes the parameters to be calibrated and the vehicle status information through the computer and determines the calibration parameters. The calibration parameters are then transmitted to the calibration device through the cloud server, and the calibration device writes the calibration parameters into the thermal management controller.

[0015] In step 1, the calibration device collects the parameters to be calibrated in the reference page of the thermal management controller.

[0016] The cloud server and the calibration device, the calibration device and the thermal management controller communicate via a universal calibration test protocol.

[0017] In step three, the engineer selects at least two sets of calibration parameters to calibrate the thermal management controller, and selects a set of calibration parameters with better effects to write into the thermal management controller based on the feedback of vehicle status information.

[0018] During the calibration process, the calibration device writes the calibration parameters into the working page of the thermal management controller for testing, and writes a set of calibration parameters with better calibration effects into the reference page of the thermal management controller according to the calibration effects.

[0019] The technical effects of the present invention are:

[0020] (1) Engineers can calibrate the car through a computer without being on site, which reduces calibration time and improves calibration efficiency.

[0021] (2) Engineers can perform remote calibration without traveling, so fewer engineers can calibrate more vehicles, reducing the cost of vehicle calibration.

[0022] (3) The present invention calibrates the vehicle by selecting a set of calibration parameters with better effects through multiple calibrations, thereby improving the effect of vehicle calibration and reducing the dependence on engineer experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] This specification includes the following drawings, which show the following contents:

[0024] Figure 1 A logic structure block diagram of a remote calibration system and method for an automobile controller of the present invention;

[0025] Figure 1 Marked as: 1. thermal management controller; 2. sensor module; 3. calibration device; 4. cloud server; 5. computer. DETAILED DESCRIPTION

[0026] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and facilitating their implementation.

[0027] The present invention provides a remote calibration system for an automobile thermal management controller, comprising a thermal management controller 1, a sensor module 2, a calibration device 3, a cloud server 4 and a computer 5, wherein the output end of the sensor module 2 is connected to the input end of the thermal management controller 1, the output end of the thermal management controller 1 is connected to the cloud server 4, the output end of the thermal management controller 1 is connected to the input end of the calibration device 3, the output end of the calibration device 3 is connected to the input end of the cloud server 4, the output end of the cloud server 4 is connected to the input end of the computer 5, the output end of the computer 5 is connected to the input end of the cloud server 4, the output end of the cloud server 4 is connected to the input end of the calibration device 3, and the output end of the calibration device 3 is connected to the input end of the thermal management controller 1.

[0028] The sensor module 2 outputs the vehicle status information to the thermal management controller 1, the thermal management controller 1 outputs the vehicle status information to the cloud server 4, the thermal management controller 1 outputs the parameters to be calibrated to the calibration device 3, the calibration device 3 outputs the parameters to be calibrated to the cloud server 4, the cloud server 4 outputs the parameters to be calibrated and the vehicle status information to the computer 5, the computer 5 outputs the calibration parameters to the cloud server 4, the cloud server 4 outputs the calibration parameters to the calibration device 3, and the calibration device 3 outputs the calibration parameters to the thermal management controller 1.

[0029] The thermal management controller 1 adopts a microcontroller. The sensor module 2 includes an in-vehicle temperature sensor, a battery temperature sensor and a coolant temperature sensor.

[0030] The present invention provides a remote calibration method for an automobile thermal management controller, which is characterized by:

[0031] Step 1: The sensor module 2 collects the vehicle status information and inputs it into the thermal management controller 1, and the calibration device 3 reads the parameters to be calibrated in the thermal management controller 1;

[0032] Step 2: The calibration device 3 transmits the parameters to be calibrated input by the thermal management controller 1 to the cloud server 4 via the wireless network, and the thermal management controller 1 transmits the vehicle status information to the cloud server 4 via the wireless network;

[0033] Step 3: The cloud server 4 transmits the parameters to be calibrated input by the calibration device 3 and the vehicle status information input by the thermal management controller 1 to the computer 5 via the wireless network. The engineer analyzes the parameters to be calibrated and the vehicle status information through the computer 5 and determines the calibration parameters, and then transmits the calibration parameters to the calibration device 3 through the cloud server 4. The calibration device 3 writes the calibration parameters into the thermal management controller 1.

[0034] In step 1, the calibration device 3 collects the parameters to be calibrated in the reference page of the thermal management controller 1 .

[0035] The cloud server 4 and the calibration device 3 , as well as the calibration device 3 and the thermal management controller 1 communicate via a universal calibration test protocol.

[0036] In step 3, the engineer selects at least two sets of calibration parameters to calibrate the thermal management controller 1, and selects a set of calibration parameters with better effect according to the feedback of the vehicle status information and writes it into the thermal management controller 1. During the calibration process, the calibration device 3 writes the calibration parameters into the working page of the thermal management controller 1 for testing, and writes a set of calibration parameters with better calibration effect into the reference page of the thermal management controller 1 according to the calibration effect.

[0037] The following is a detailed description of a remote calibration device and method for an automobile thermal management controller according to the present invention.

[0038] The present invention discloses a remote calibration system for a thermal management controller of an automobile, comprising a thermal management controller 1, a sensor module 2, a calibration device 3, a cloud server 4 and a computer 5, wherein the thermal management controller 1 is used to collect the state information of the automobile and transmit the state information of the automobile to the cloud server 4, and the thermal management controller 1 adopts a microcontroller, and the model of the microcontroller in the present invention is Infineon TC3xx. The sensor module 2 is used to collect the state information of the automobile. In the embodiment of the present invention, the sensor module 2 comprises an in-vehicle temperature sensor, a battery temperature sensor and a coolant temperature sensor, which respectively collect the temperature of the in-vehicle temperature, the battery temperature and the temperature of the battery coolant. The calibration device 3 is used to read the parameters to be calibrated in the thermal management controller 1 and write the calibration parameters into the thermal management controller 1, and the calibration device 3 selects Vcetor's Vx1000. The cloud server 4 is used to output the automobile state information input by the thermal management controller 1 and the parameters to be calibrated input by the calibration device 3 to the computer 5, and output the calibration parameters input by the computer 5 to the calibration device 3. The computer 5 is used to receive the vehicle status information and calibration parameters input by the cloud server 4. The engineer inputs the calibration parameters through the computer 5 and transmits them to the calibration device 3 through the cloud server 4. The engineer can calibrate the vehicle through the computer without being on site, which improves the efficiency of calibration. At the same time, the engineer can perform remote calibration without traveling, and fewer engineers can calibrate more vehicles, reducing the cost of vehicle calibration.

[0039] The thermal management controller 1 is connected to the calibration device 3 via a CAN bus, the calibration device 3 is connected to the cloud server 4 via a wireless network, the output ends of the in-vehicle temperature sensor, the battery temperature sensor, and the coolant temperature sensor are connected to the input end of the thermal management controller 1, the output end of the thermal management controller 1 is connected to the input end of the cloud server 4 via a wireless network, and the cloud server 4 is connected to the computer 5.

[0040] A remote calibration method for an automobile thermal management controller of the present invention is as follows:

[0041] The in-vehicle temperature sensor, battery temperature sensor, air-conditioning pressure sensor, and coolant temperature sensor in the sensor module 2 respectively collect the in-vehicle temperature, battery temperature, and battery coolant temperature and input these vehicle status information into the thermal management controller 1. The calibration device 3 reads the parameters to be calibrated in the reference page in the thermal management controller 1, and the reference page is located in the flash in the thermal management controller 1.

[0042] The calibration device 3 transmits the parameters to be calibrated input by the thermal management controller 1 to the cloud server 4 via the wireless network. The thermal management controller 1 transmits the vehicle status information including the vehicle interior temperature, the battery temperature, and the battery coolant temperature to the cloud server 4 via the wireless network. The cloud server 4 receives the parameters to be calibrated input by the calibration device 3 and the vehicle status information input by the thermal management controller 1 and stores them.

[0043] The cloud server 4 transmits the parameters to be calibrated input by the calibration device 3 and the vehicle status information input by the thermal management controller 1 to the computer 5 through the wireless network. The engineer analyzes the vehicle status information and the parameters to be calibrated through the computer 5 and determines the calibration parameters, and then transmits the calibration parameters to the calibration device 3 through the cloud server 4, and the calibration device 3 writes the calibration parameters into the thermal management controller 1. Specifically, the calibration device 3 writes the calibration parameters into the working page of the thermal management controller 1, and the working page is located in the RAM of the thermal management controller 1. After the thermal management controller 1 is running, the sensor module 2 transmits the vehicle status information to the computer 5 through the cloud server 4. At least two groups of calibration parameters are selected for repeated operation. The engineer selects a group of calibration parameters with the best calibration effect according to the vehicle status information. This calibration parameter is transmitted from the computer 5 to the calibration device 3 through the cloud server 4, and the calibration device 3 writes this calibration parameter into the reference page of the thermal management controller 1. The preferred state of the vehicle status information of the present invention is that the vehicle interior temperature is 25°C, the battery temperature is 40°C, and the battery coolant temperature is 30°C. The present invention calibrates a vehicle by selecting a group of calibration parameters with better effects through multiple calibrations, thereby improving the effect of vehicle calibration and reducing dependence on engineer experience.

[0044] The cloud server 4 and the calibration device 3 , as well as the calibration device 3 and the thermal management controller 1 communicate via a universal calibration test protocol.

[0045] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A remote calibration system for an automotive thermal management controller, characterized in that: It includes a thermal management controller, a sensor module, a calibration device, a cloud server and a computer, wherein the output end of the sensor module is connected to the input end of the thermal management controller, the output end of the thermal management controller is connected to the cloud server, the output end of the thermal management controller is connected to the input end of the calibration device, the output end of the calibration device is connected to the input end of the cloud server, the output end of the cloud server is connected to the input end of the computer, the output end of the computer is connected to the input end of the cloud server, the output end of the cloud server is connected to the input end of the calibration device, and the output end of the calibration device is connected to the input end of the thermal management controller.

2. The remote calibration system for an automotive thermal management controller according to claim 1, characterized in that: The sensor module outputs vehicle status information to the thermal management controller, the thermal management controller outputs vehicle status information to the cloud server, the thermal management controller outputs parameters to be calibrated to the calibration device, the calibration device outputs parameters to be calibrated to the cloud server, the cloud server outputs parameters to be calibrated and vehicle status information to the computer, the computer outputs calibration parameters to the cloud server, the cloud server outputs calibration parameters to the calibration device, and the calibration device outputs calibration parameters to the thermal management controller.

3. The remote calibration system for an automotive thermal management controller according to claim 1, characterized in that: The thermal management controller adopts a microcontroller.

4. The remote calibration system for an automotive thermal management controller according to claim 1, characterized in that: The sensor module includes an in-vehicle temperature sensor, a battery temperature sensor and a coolant temperature sensor.

5. A remote calibration method for an automotive thermal management controller according to any one of claims 1 to 4, characterized in that: Step 1: The sensor module collects vehicle status information and inputs it into the thermal management controller, and the calibration device reads the parameters to be calibrated in the thermal management controller; Step 2: The calibration device transmits the parameters to be calibrated input by the thermal management controller to the cloud server via the wireless network, and the thermal management controller transmits the vehicle status information to the cloud server via the wireless network; Step 3: The cloud server transmits the parameters to be calibrated input by the calibration device and the vehicle status information input by the thermal management controller to the computer via the wireless network. The engineer analyzes the parameters to be calibrated and the vehicle status information through the computer and determines the calibration parameters. The calibration parameters are then transmitted to the calibration device through the cloud server, and the calibration device writes the calibration parameters into the thermal management controller.

6. A remote calibration method for an automotive thermal management controller as claimed in claim 5, characterized in that: In step 1, the calibration device collects the parameters to be calibrated in the reference page of the thermal management controller.

7. A remote calibration method for an automotive thermal management controller as claimed in claim 5, characterized in that: The cloud server and the calibration device, the calibration device and the thermal management controller communicate via a universal calibration test protocol.

8. The remote calibration method for an automotive thermal management controller according to claim 5, characterized in that: In step three, the engineer selects at least two sets of calibration parameters to calibrate the thermal management controller, and selects a set of calibration parameters with better effects to write into the thermal management controller based on the feedback of vehicle status information.

9. A remote calibration method for an automotive thermal management controller as claimed in claim 5 or 8, characterized in that: During the calibration process, the calibration device writes the calibration parameters into the working page of the thermal management controller for testing, and writes a set of calibration parameters with better calibration effects into the reference page of the thermal management controller according to the calibration effects.

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