CN211528994U - Test circuit of fuel cell controller - Google Patents
Test circuit of fuel cell controller Download PDFInfo
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- CN211528994U CN211528994U CN202020176606.1U CN202020176606U CN211528994U CN 211528994 U CN211528994 U CN 211528994U CN 202020176606 U CN202020176606 U CN 202020176606U CN 211528994 U CN211528994 U CN 211528994U
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Abstract
The utility model provides a test circuit of fuel cell controller, the utility model realizes testing various external interfaces of the controller by arranging a sensor signal acquisition interface circuit, a low-side valve drive interface circuit, a high-side valve drive interface circuit and an H bridge drive interface circuit, and realizes the test excitation function of the external interface of the fuel cell controller FCU; the electric function simulation of the physical equipment is realized through simple elements such as a toggle switch, a direct-sliding potentiometer, a resistor and the like, so that the cost is low; the circuit design is simple, the whole design of the test circuit can be compact and small, and the controller is convenient for developers to carry and move.
Description
Technical Field
The utility model relates to a fuel cell technical field, especially a fuel cell controller's test circuit.
Background
Fuel cell technology has been undergoing research and development for several decades worldwide, and in recent years, there has been a gradual advance toward industrialization, and the design of fuel cell systems has also been gradually advancing toward high integration, high reliability, and miniaturization. In a fuel cell system, the core unit of the electronic control system is the system controller FCU of the fuel cell. At present, however, the number of commercialized FCUs is very small, and the main reason is that the peripheral resource demand of the FCU is greatly different from that of the conventional controller ECU or BMS of the system such as the engine and the lithium battery of the new energy. Therefore, the test units associated with the FCU are rare at present, and it is very inconvenient for the controller software and hardware developers to have no test unit associated with the FCU during the development process of the controller of the fuel cell.
Because no special test and excitation equipment matched with the fuel cell controller exists in the current market, developers can only use various equipment to carry out testing in a piecing mode, and the fuel cell controller is complex in operation, low in efficiency and inconvenient to carry and move. And because there is no special integrated test equipment, there is no special connector adapted to the fuel cell controller, and developers test the fuel cell controller in a flying wire manner, and it is very inconvenient to reconnect the controller.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a fuel cell controller's test circuit aims at solving the problem that lacks the special connector with fuel cell controller adaptation among the prior art, realizes testing the multiple external interface of controller with low cost, the light mode of design.
In order to achieve the above technical object, the utility model provides a fuel cell controller's test circuit, test circuit includes:
the fuel cell system comprises a sensor signal acquisition interface circuit, a low-side valve driving interface circuit, a high-side valve driving interface circuit and an H-bridge driving interface circuit, wherein each circuit is independently arranged and can be connected with a fuel cell controller through a connecting terminal.
Preferably, the sensor signal acquisition interface circuit comprises toggle switches SWA0_ AI, SWA1_ AI, SWA2_ AI, external connection terminal AI1_ Port, controller connection terminal J1A and direct slide potentiometer Rt1, the 2 nd pin of the toggle switch SWA1_ AI is a normally closed end, the external connection terminal AI1_ Port and the controller connection terminal J1A are connected, the 1 st pin of the toggle switch SWA1_ AI is connected with the direct slide potentiometer Rt1, the two ends of the direct slide potentiometer Rt1 are respectively connected with the normally closed ends of the toggle switches SWA0_ AI and SWA2_ AI, the 1 st pin of the toggle switch SWA0_ AI is connected with a controller power supply source VCC _ BAT, and the 1 st pin of the toggle switch SWA2_ AI is connected with a controller power supply ground terminal _ GND.
Preferably, the low-side valve driving interface circuit comprises a toggle switch SWL1, an external connection terminal LSD0_ Port, a controller connection terminal J3A, a current limiting resistor R1 and a load resistor RL1, wherein a pin 2 of the toggle switch SWL1 is a normally closed end and is connected with the external connection terminal LSD0_ Port and the controller connection terminal J3A, a pin 1 of the toggle switch SWL1 is connected with a current limiting resistor R1 and the load resistor RL1, the other end of the current limiting resistor R1 is connected with an LED1, and the other end of the LED1 and the other end of the RL1 are connected with a controller power supply VCC _ BAT.
Preferably, the high-side valve driving interface circuit comprises a toggle switch SWH1, an external connection terminal HSD0_ Port, a controller connection terminal J3B, a current-limiting resistor R15 and a load resistor RH1, wherein a2 nd pin of the toggle switch SWH1 is a normally closed end and is simultaneously connected with the external connection terminal HSD0_ Port and the controller connection terminal J3B, a1 st pin of the toggle switch SWH1 is connected with an LED15 and the load resistor RH1, the other end of the LED15 is connected with the current-limiting resistor R15, and the other ends of the current-limiting resistor R15 and the load resistor RH1 are both connected with a controller power supply ground terminal GND _ BAT.
Preferably, the H-bridge driving interface circuit comprises toggle switches SWHB1 and SWHB2, external connection terminals HB0A _ Port and HB0B _ Port, a controller connection terminal J3B, current limiting resistors R23 and R24, and a load resistor RHB1, a2 nd pin of the toggle switch SWHB1 is a normally closed end, the external connection terminal HB0A _ Port and the controller connection terminal J3B are connected at the same time, a2 nd pin of the toggle switch SWHB2 is a normally closed end, the external connection terminal HB0B _ Port and the controller connection terminal J3B are connected at the same time, a1 st pin of the toggle switch SWHB1 is connected with the load resistor RHB1, indicator lamps LED23 and LED24, the other end of the indicator lamp LED23 and the other end of the LED24 are respectively connected with the current limiting resistors R23 and R24, and the other end of the current limiting resistor R24, the other end of the R24 and the other end of the load resistor RHB 24 are connected with a first pin of the toggle switch SWHB.
Preferably, the number of the sensor signal acquisition interface circuits is not less than 22; the number of the low-side valve driving interface circuits is not less than 14; the number of the high-side valve driving interface circuits is not less than 8; the number of the H-bridge drive interface circuits is not less than 2.
The effects provided in the contents of the present invention are only the effects of the embodiments, not all the effects of the present invention, and one of the above technical solutions has the following advantages or advantageous effects:
compared with the prior art, the utility model realizes the test of various external interfaces of the controller by arranging the sensor signal acquisition interface circuit, the low-side valve driving interface circuit, the high-side valve driving interface circuit and the H-bridge driving interface circuit, and realizes the test excitation function of the external interface of the fuel cell controller FCU; the electric function simulation of the physical equipment is realized through simple elements such as a toggle switch, a direct-sliding potentiometer, a resistor and the like, so that the cost is low; the circuit design is simple, the whole design of the test circuit can be compact and small, and the controller is convenient for developers to carry and move.
Drawings
Fig. 1 is a diagram of a sensor signal acquisition interface circuit structure provided in an embodiment of the present invention;
fig. 2 is a circuit diagram of a low-side valve driving interface circuit according to an embodiment of the present invention;
fig. 3 is a circuit diagram of a high-side valve driving interface circuit according to an embodiment of the present invention;
fig. 4 is a structural diagram of an H-bridge driving interface circuit provided in an embodiment of the present invention.
Detailed Description
In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted so as to not unnecessarily limit the invention.
The following describes a test circuit of a fuel cell controller according to the present invention in detail with reference to the accompanying drawings.
The utility model discloses a fuel cell controller's test circuit, test circuit includes: the fuel cell system comprises a sensor signal acquisition interface circuit, a low-side valve driving interface circuit, a high-side valve driving interface circuit and an H-bridge driving interface circuit, wherein each circuit is independently arranged and can be connected with a fuel cell controller through a connecting terminal.
The main functions of the peripheral resources of the fuel cell controller include valve control, and acquisition of sensor signals, the valve control generally controls the opening and closing of the valve through high-side or low-side power supply drive, and the sensor signals generally include variable voltage signals, current signals, and resistance signals. Therefore the utility model discloses an independent complete test circuit of one set, with the main function peripheral hardware interface of fuel cell controller, including valve drive interface, sensor signal acquisition interface etc. all cover its test function.
As shown in fig. 1, the sensor signal collecting interface circuit includes a toggle switch SWA0_ AI, a SWA1_ AI, a SWA2_ AI, an external connection terminal AI1_ Port, a controller connection terminal J1A and a direct slide potentiometer Rt1, a pin 2 of the toggle switch SWA1_ AI is a normally closed terminal, and is simultaneously connected with the external connection terminal AI1_ Port and the controller connection terminal J1A, a pin 1 of the toggle switch SWA1_ AI is connected with the direct slide potentiometer Rt1, two ends of the direct slide potentiometer Rt1 are respectively connected with the normally closed terminals of the toggle switch SWA0_ AI and the SWA2_ AI, a pin 1 of the toggle switch SWA0_ AI is connected with a controller power supply source VCC _ BAT, and a pin 1 of the toggle switch SWA2_ AI is connected with a controller power supply ground terminal GND _ BAT.
When the toggle switch SWA1_ AI is switched to the 3 rd pin, the test mode is excited for the external equipment at the moment, and the external equipment can be connected with the external physical equipment through the external connection terminal AI1_ Port; when the toggle switch SWA1_ AI is switched to the 1 st pin, the test mode is an internal excitation test mode, in the mode, when the toggle switch SWA0_ AI and the toggle switch SWA2_ AI are simultaneously switched to the 1 st pin, the test mode is a voltage signal sensor simulation mode, and a user changes the voltage division on an AI1 wire through a sliding potentiometer Rt1, so that the test purpose of acquiring a voltage signal by a controller sensor signal acquisition interface is realized; when the toggle switch SWA0_ AI is switched to the 3 rd pin and the SWA2_ AI is switched to the 1 st pin, the resistance signal sensor is in a resistance signal sensor simulation mode, a user changes the resistance value on an AI1 line through the sliding potentiometer Rt1, and the purpose of testing the resistance signal acquired by the sensor signal acquisition interface of the controller is achieved; when the toggle switch SWA0_ AI is switched to the 1 st pin and the SWA2_ AI is switched to the 3 rd pin, the current signal sensor is in a current signal sensor simulation mode, a user changes the current value on the AI1 line through the sliding potentiometer Rt1, and the purpose of testing the current signal acquired by the sensor signal acquisition interface of the controller is achieved.
As shown in fig. 2, the low-side valve driving interface circuit includes a toggle switch SWL1, an external connection terminal LSD0_ Port, a controller connection terminal J3A, a current limiting resistor R1, and a load resistor RL1, a pin 2 of the toggle switch SWL1 is a normally closed terminal, and is connected to the external connection terminal LSD0_ Port and the controller connection terminal J3A, a pin 1 of the toggle switch SWL1 is connected to a current limiting resistor R1 and the load resistor RL1, the other end of the current limiting resistor R1 is connected to the LED1, and the other end of the LED1 and the other end of the RL1 are connected to a controller power supply VCC _ BAT.
When the toggle switch SWL1 is switched to the No. 3 pin, the test mode is excited for external equipment, and the external equipment can be connected with external physical equipment through the external connection terminal LSD0_ Port; when the toggle switch SWL1 is switched to the 1 st pin, an internal excitation test mode is adopted, the function of the driving circuit is realized through the load resistor RL1, and a user observes whether the low-side driving function of the controller is enabled or not through the LED1, so that the purpose of testing one low-side driving interface of the controller is realized.
As shown in fig. 3, the high-side valve driving interface circuit includes a toggle switch SWH1, an external connection terminal HSD0_ Port, a controller connection terminal J3B, a current-limiting resistor R15, and a load resistor RH1, a pin 2 of the toggle switch SWH1 is a normally closed terminal, and is connected to the external connection terminal HSD0_ Port and the controller connection terminal J3B, a pin 1 of the toggle switch SWH1 is connected to an LED15 and the load resistor RH1, the other end of the LED15 is connected to the current-limiting resistor R15, and the other ends of the current-limiting resistor R15 and the load resistor RH1 are both connected to a controller power ground GND _ BAT.
When the toggle switch SWH1 is switched to the 3 rd pin, the test mode is activated for external equipment, and the external equipment can be connected with external physical equipment through the external connection terminal HSD0_ Port; when the toggle switch SWH1 is switched to the 1 st pin, an internal excitation test mode is adopted, the function of the driving circuit is realized through the load resistor RH1, and a user observes whether the high-side driving function of the controller is enabled or not through the LED15, so that the purpose of testing one high-side driving interface of the controller is realized.
As shown in fig. 4, the H-bridge driving interface circuit includes toggle switches SWHB1 and SWHB2, external connection terminals HB0A _ Port and HB0B _ Port, a controller connection terminal J3B, current limiting resistors R23 and R24, and a load resistor RHB1, where a2 nd pin of the toggle switch SWHB1 is a normally closed end, the external connection terminal HB0A _ Port and the controller connection terminal J3B are connected at the same time, a2 nd pin of the toggle switch SWHB2 is a normally closed end, the external connection terminal HB 0_ 0B _ Port and the controller connection terminal J3B are connected at the same time, a1 st pin of the toggle switch SWHB1 is connected to the load resistor RHB1, the indicator lamps LED23 and LED24, the other ends of the indicator lamp LED23 and the LED24 are connected to the current limiting resistors R23 and R24, and the other ends of the current limiting resistors R23, R24 and the load resistor RHB1 are connected to the first pin of the toggle switch SWHB 2.
When the toggle switch SWHB1 and SWHB2 are switched to the No. 3 pin simultaneously, a test mode is excited for external equipment, and the external equipment can be connected with external physical equipment through external connection terminals HB0A _ Port and HB0B _ Port; when the toggle switch SWHB1 and SWHB2 are switched to the 1 st pin simultaneously, an internal excitation test mode is adopted, the function of a driving circuit can be realized through the load resistor RHB1, and a user observes whether the H-bridge driving function of the controller is enabled or not through the indicator lamps LED23 and LED24, so that the purpose of testing the H-bridge interface of the controller is realized.
The whole set of circuit CAN realize being no less than 22 sensor signal simulation of way, is no less than 14 low limit drive load simulations, is no less than 8 high limit drive load simulations, is no less than 2 way H bridge load simulations, and the measurement of signals such as compatible DI, PWM also draws controller interfaces such as CAN, sensor power supply to the device panel simultaneously, conveniently carries out the access test of external equipment.
The size of the circuit board for bearing the whole set of circuit can be designed to be 280mm 380mm, the size is small and exquisite, the whole test circuit is compact and light, and the test circuit can be installed in a 40cm 30cm 15cm suitcase, so that the carrying and moving are convenient.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A test circuit for a fuel cell controller, the test circuit comprising:
the system comprises a sensor signal acquisition interface circuit, a low-side valve driving interface circuit, a high-side valve driving interface circuit and an H-bridge driving interface circuit, wherein each circuit is independently arranged and is connected with a fuel cell controller through a connecting terminal.
2. The test circuit of a fuel cell controller according to claim 1, wherein the sensor signal acquisition interface circuit comprises a toggle switch SWA0_ AI, SWA1_ AI, SWA2_ AI, an external connection terminal AI1_ Port, a controller connection terminal J1A and a direct slide potentiometer Rt1, the 2 nd pin of the toggle switch SWA1_ AI is a normally closed terminal, the external connection terminal AI1_ Port and the controller connection terminal J1A are connected at the same time, the 1 st pin of the toggle switch SWA1_ AI is connected with the direct slide potentiometer Rt1, two ends of the direct slide potentiometer Rt1 are respectively connected with the normally closed terminals of the toggle switch SWA0_ AI and the SWA2_ AI, the 1 st pin of the toggle switch SWA0_ AI is connected with a controller power supply source VCC _ BAT, and the 1 st pin of the toggle switch SWA2_ AI is connected with a controller power supply ground terminal GND _ BAT.
3. The test circuit of the fuel cell controller of claim 1, wherein the low-side valve driving interface circuit comprises a toggle switch SWL1, an external connection terminal LSD0_ Port, a controller connection terminal J3A, a current limiting resistor R1 and a load resistor RL1, wherein a pin 2 of the toggle switch SWL1 is a normally closed end, the external connection terminal LSD0_ Port and the controller connection terminal J3A are connected, a pin 1 of the toggle switch SWL1 is connected with the current limiting resistor R1 and the load resistor RL1, the other end of the current limiting resistor R1 is connected with the LED1, and the other end of the LED1 and the other end of the RL1 are connected with a controller power supply VCC _ BAT.
4. The test circuit of the fuel cell controller of claim 1, wherein the high-side valve driving interface circuit comprises a toggle switch SWH1, an external connection terminal HSD0_ Port, a controller connection terminal J3B, a current-limiting resistor R15 and a load resistor RH1, a pin 2 of the toggle switch SWH1 is a normally closed terminal, the external connection terminal HSD0_ Port and the controller connection terminal J3B are connected, a pin 1 of the toggle switch SWH1 is connected with an LED15 and a load resistor RH1, the other end of the LED15 is connected with the current-limiting resistor R15, and the other end of the current-limiting resistor R15 and the other end of the load resistor RH1 are connected with a controller power supply ground terminal GND _ BAT.
5. The test circuit of the fuel cell controller according to claim 1, wherein the H-bridge driving interface circuit comprises toggle switches SWHB1 and SWHB2, external connection terminals HB0A _ Port and HB0B _ Port, a controller connection terminal J3B, current limiting resistors R23 and R24, and a load resistor RHB1, a2 nd pin of the toggle switch SWHB1 is a normally closed end, the external connection terminal HB0A _ Port and the controller connection terminal J3B are connected at the same time, a2 nd pin of the toggle switch SWHB2 is a normally closed end, the external connection terminal HB 630 _ Port and the controller J3B are connected at the same time, a1 st pin of the toggle switch SWHB1 is connected with the load resistor RHB1, the indicator light LEDs 23, the LED24, the other end of the indicator light LED23, and the other end of the LED24 are respectively connected with the current limiting resistors R23 and R24, the other end of the current limiting resistor R24, the other end of the load resistor R24, and the second end of the toggle switch SWHB 24.
6. The fuel cell controller test circuit according to any one of claims 1 to 5, wherein the number of the sensor signal acquisition interface circuits is not less than 22; the number of the low-side valve driving interface circuits is not less than 14; the number of the high-side valve driving interface circuits is not less than 8; the number of the H-bridge drive interface circuits is not less than 2.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020176606.1U CN211528994U (en) | 2020-02-17 | 2020-02-17 | Test circuit of fuel cell controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020176606.1U CN211528994U (en) | 2020-02-17 | 2020-02-17 | Test circuit of fuel cell controller |
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| CN211528994U true CN211528994U (en) | 2020-09-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112505572A (en) * | 2020-11-20 | 2021-03-16 | 山东氢探新能源科技有限公司 | Fuel cell fault diagnosis device and method based on single voltage difference |
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2020
- 2020-02-17 CN CN202020176606.1U patent/CN211528994U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112505572A (en) * | 2020-11-20 | 2021-03-16 | 山东氢探新能源科技有限公司 | Fuel cell fault diagnosis device and method based on single voltage difference |
| CN112505572B (en) * | 2020-11-20 | 2023-02-28 | 山东氢探新能源科技有限公司 | Fuel cell fault diagnosis device and method based on single voltage difference |
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