A HTCU controller flashing power supply system

Abstract

The utility model discloses a HTCU controller flashing power supply system, including a PC, a PCCAN flashing device, a DB9CAN communication interface, an HTCU controller, a power supply OT terminal, a USB interface, a power connector, a power pin terminal and a battery, wherein: the PCCAN flashing device is connected to the PC; the PCCAN flashing device is connected to the HTCU controller via CAN1 and CAN2 respectively; the output ends of the USB interface power supply, the power supply OT terminal, the power connector and the power pin terminal are connected to the HTCU controller together; the input end of the USB interface is connected to the PC; the input end of the power supply OT terminal is connected to the battery; the input end of the power connector is connected to the vehicle wiring harness; the input end of the power pin is connected to the vehicle wiring harness or the battery. The utility model designs different power interfaces for the flashing wiring harness, and the operator can obtain the flashing power from the battery, the computer and the wiring harness terminal, and solves the problem of controller flashing dead.

Description

Technical Field

[0001] The utility model belongs to the technical field of power supply, and in particular relates to a flashing power supply system for an HTCU controller. Background Art

[0002] When new energy vehicles come off the assembly line, or when prototypes are debugged or in the product SOP stage, programmers need to repeatedly flash and update the controller's data. Programmers usually connect the flashing equipment through the vehicle's OBD port, or they can remove the TCU from the vehicle and perform diagnosis and data flashing through the TCU flashing harness.

[0003] However, during the first vehicle roll-off or prototype debugging process, the controller power supply harness cannot power the controller or the CAN communication cannot work properly. Due to problems in the production of the vehicle harness, the OEM did not connect the controller flashing CAN line and the power line to the OBD port, resulting in the problem of not being able to flash, resulting in the inability to flash the compiled program to the controller. The conditions on the workshop site are generally relatively simple, and the calibration or after-sales personnel are affected by the work progress in order to obtain power. In addition, due to the complex CAN network environment of the vehicle, during the TCU data flashing stage of the OB connector, if other nodes in the vehicle send error frames, it is easy to cause data flashing to die. During the repeated flashing process, there is a situation where the controller is flashed to death, and only forced flashing can be used later. These situations are common in the early stage of product matching, and the flashing cannot be completed. At this time, it is necessary to use the flashing harness to flash. Utility Model Content

[0004] The utility model aims to provide a HTCU controller flashing power supply system to solve the problem that the controller power supply harness cannot supply power and the controller flashing dead problem. Among them, the HTCU controller refers to a hybrid dedicated vehicle controller.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A HTCU controller flashing power supply system includes a PC, a PCCAN flashing device, a DB9CAN communication interface, an HTCU controller, a power supply OT terminal, a USB interface, a power connector, a power pin terminal and a battery, wherein:

[0007] Connect the PCCAN flashing device to the PC;

[0008] The PCCAN flashing device is connected to the HTCU controller via CAN1 and CAN2 respectively;

[0009] The output ends of the USB interface power supply, power supply OT terminal, power connector and power pin terminal are connected to the HTCU controller together;

[0010] The input end of the USB interface is connected to the PC;

[0011] The input end of the power supply OT terminal is connected to the battery;

[0012] The input end of the power connector is connected to the vehicle wiring harness;

[0013] The input end of the power pin is connected to the vehicle wiring harness or battery.

[0014] Furthermore, pins 2 and 7 of the PCCAN flashing device are respectively connected to pins CAN1_LB1041 and CAN1_HB1063 of the HTCU controller; the PCCAN flashing device is respectively connected to pins CAN2_LB1038 and CAN2_HB1060 of the HTCU controller via pins 2 and 7 of CAN2.

[0015] Furthermore, the input end of the USB interface is connected to the PC via a first switch;

[0016] The input end of the power supply OT terminal is connected to the battery through a second switch;

[0017] The input end of the power connector is connected to the vehicle wiring harness through a third switch;

[0018] The input end of the power pin is connected to the vehicle wiring harness or the battery through a fourth switch.

[0019] Compared with the prior art, the utility model has the following technical effects:

[0020] The utility model designs different power supply interfaces for flashing harnesses, and operators can obtain flashing power from batteries, computers and harness terminals. It provides convenience for operators of on-site flashing and improves work efficiency and production efficiency. At the same time, the flashing problem of the controller is solved by connecting the power supply system with the CAN line. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the electrical connection of the utility model;

[0022] Figure 2 This is a schematic diagram of the DB9 CAN communication interface;

[0023] Figure 3 This is a schematic diagram of the HTCU controller circuit interface. DETAILED DESCRIPTION

[0024] The present invention is further explained below in conjunction with the accompanying drawings and specific implementation methods.

[0025] like Figure 1 , Figure 2 , Figure 3 As shown, the HTCU controller flashing power supply system provided by the utility model includes a PC, a PCCAN flashing device, a DB9 CAN communication interface, an HTCU controller, power supply OT terminals (B1005, B1006), a USB interface (B1007, B1008), a power connector (B1003, B1004), a power pin terminal (B1001, B1002) and a battery, wherein:

[0026] Connect the PCCAN flashing device to the PC;

[0027] The PCCAN flash device is connected to the HTCU controller's pins CAN1_L B1041 and CAN1_H B1063 through the CAN1 pins 2 and 7 respectively;

[0028] The PCCAN flash device is connected to the HTCU controller's pins CAN2_L B1038 and CAN2_H B1060 through the CAN2 pins 2 and 7 respectively;

[0029] The output ends of the USB interface power supply, power supply OT terminal, power connector and power pin terminal are connected to the HTCU controller together;

[0030] The input end of the USB interface (B1007, B1008) is connected to the PC via a first switch;

[0031] The input end of the power supply OT terminal (B1005, B1006) is connected to the battery through the second switch;

[0032] The input end of the power connector (B1003, B1004) is connected to the vehicle wiring harness through a third switch;

[0033] The input end of the power pin (B1001, B1002) is connected to the vehicle wiring harness or the battery through the fourth switch.

[0034] The working process of the utility model is as follows:

[0035] (1) Power the HTCU controller through the USB interface (B1007, B1008), power OT terminal (B1005, B1006), power connector (B1003, B1004), and power pin terminal (B1001, B1002);

[0036] (2) According to the actual situation of the workshop site and equipment, the HTCU controller automatically selects the power distribution mode according to the voltage values ​​of B1001, B1002, B1003, B1004, B1005, B1006, B1007, and B1008.

[0037] (3) If the USB interface is normal, use solution 1, specifically use the USB interface for power supply, connect the USB interface (B1007, B1008) to the PC to complete power supply, and the operator completes the flashing according to the flashing process.

[0038] (4) When solution 1 fails (i.e., the USB interface is abnormal), solution 2 is executed, which is to connect the power supply OT terminals (B1005, B1006) to the positive and negative poles of the battery to complete power extraction, and the operator completes the flashing according to the flashing process.

[0039] (5) When Schemes 1 and 2 fail (i.e., both the USB interface and the power supply OT terminal are abnormal), and the vehicle wiring harness has a power connector interface, execute Scheme 3, which is to connect the power connector (B1003, B1004) to the vehicle wiring harness to complete power extraction, and the operator completes the flashing according to the flashing process.

[0040] (6) When solutions 1, 2, and 3 all fail (i.e., the USB interface, power supply OT terminal, and power connector are all abnormal), implement solution 4, which involves connecting the power pins (B1001, B1002) to the vehicle wiring harness or battery to complete power extraction, and the operator completes the flashing according to the flashing process.

[0041] After the system of the utility model is installed, the above operation process can be realized by a person skilled in the art by performing conventional operations according to the connection of various components of the system.

Claims

1. A HTCU controller flash power supply system, characterized in that: It includes a PC, a PCCAN flashing device, a DB9 CAN communication interface, a HTCU controller, a power supply OT terminal, a USB interface, a power connector, a power pin terminal and a battery, among which: Connect the PCCAN flashing device to the PC; The PCCAN flashing device is connected to the HTCU controller via CAN1 and CAN2 respectively; The output ends of the USB interface power supply, power supply OT terminal, power connector and power pin terminal are connected to the HTCU controller together; The input end of the USB interface is connected to the PC; The input end of the power supply OT terminal is connected to the battery; The input end of the power connector is connected to the vehicle wiring harness; The input end of the power pin is connected to the vehicle wiring harness or battery.

2. The HTCU controller flashing power supply system according to claim 1, characterized in that: Pins 2 and 7 of the PCCAN flashing device are connected to pins CAN1_L B1041 and CAN1_H B1063 of the HTCU controller respectively; the PCCAN flashing device is connected to pins CAN2_L B1038 and CAN2_H B1060 of the HTCU controller respectively through pins 2 and 7 of CAN2.

3. The HTCU controller flashing power supply system according to claim 1, characterized in that: The input end of the USB interface is connected to the PC via a first switch; The input end of the power supply OT terminal is connected to the battery through a second switch; The input end of the power connector is connected to the vehicle wiring harness through a third switch; The input end of the power pin is connected to the vehicle wiring harness or the battery through a fourth switch.

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