Water flow and water temperature detection device of automobile brake hub cooling system

Abstract

The utility model discloses a water flow and water temperature detection device of an automobile brake hub cooling system, which relates to the technical field of automobile parts and comprises a water segregator, a control circuit, a multi-channel multi-way switch, a water flow detection circuit and a water temperature detection circuit. The water distributor comprises a plurality of water distribution channels; the number of the water diversion channels is the same as that of the automobile brake hubs, and one water diversion channel corresponds to one automobile brake hub; water inlets of the water distribution channels are connected with water outlets of the corresponding automobile brake hubs, and water outlets of the water distribution channels are connected with water inlets of the corresponding automobile brake hubs. A water flow detection circuit and a water temperature detection circuit are arranged in the water diversion channel; the multi-channel multi-way switch and the water flow detection circuit are connected with the control circuit; the water temperature detection circuit is connected with the control circuit through the multi-channel multi-way switch; and the control circuit is connected with the vehicle-mounted receiver. The water temperature sensor can collect the water temperature of a target channel according to own needs, and is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a water flow and water temperature detection device for an automobile brake hub cooling system. Background Art

[0002] In the existing automobile brake hub cooling system water flow and water temperature detection device, a temperature sensor and a flow sensor are set in each channel of the water distributor to measure the water temperature and flow. Only the water temperature of all channels can be collected at the same time. It is not possible to select the channel to be collected according to one's needs, which is inconvenient to use. Summary of the invention

[0003] The utility model aims to provide a water flow and water temperature detection device for a cooling system of a brake hub of an automobile, which can collect the water temperature of a target passage according to one's own needs and is convenient to use.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] A water flow and water temperature detection device for a vehicle brake hub cooling system, comprising: a water distributor, a control circuit, a multi-channel multi-way switch, a water flow detection circuit and a water temperature detection circuit;

[0006] The water distributor comprises a plurality of water diversion channels; the number of the water diversion channels is the same as the number of the automobile brake hubs, and one water diversion channel corresponds to one automobile brake hub; the water inlet of the water diversion channel is connected to the water outlet of the corresponding automobile brake hub, and the water outlet of the water channel is connected to the water inlet of the corresponding automobile brake hub; the water flow detection circuit and the water temperature detection circuit are arranged in each of the water diversion channels;

[0007] The multi-channel multi-way switch and the water flow detection circuit are both connected to the control circuit; the water temperature detection circuits in each of the water diversion channels are connected to the control circuit via the multi-channel multi-way switch, and one water temperature detection circuit corresponds to one channel in the multi-channel multi-way switch; the control circuit is connected to a vehicle-mounted receiver, and is used to transmit the water flow detected by the water flow detection circuit and the water temperature detected by the water temperature detection circuit to the vehicle-mounted receiver.

[0008] Optionally, the water flow and water temperature detection device of the automobile brake hub cooling system further includes: a power conversion circuit, and the control circuit, the multi-channel multi-way switch, the water flow detection circuit and the water temperature detection circuit are all connected to the power supply through the power conversion circuit.

[0009] Optionally, the water diverter includes: a wireless transmission antenna, a base plate and six water diversion channels; the six water diversion channels are all arranged on the base plate and located on the same side of the base plate; the first water diversion channel, the second water diversion channel and the third water diversion channel are arranged in parallel at one end of the base plate, the fourth water diversion channel, the fifth water diversion channel and the sixth water diversion channel are arranged in parallel at the other end of the base plate, and the first water diversion channel is not parallel to the fourth water diversion channel; the control circuit is connected to the vehicle-mounted receiver through the wireless transmission antenna.

[0010] Optionally, the wireless transmission antenna includes: a wireless transmission circuit board, a first connection circuit and a second connection circuit, and the wireless transmission circuit board is connected to the control circuit via the first connection circuit and the second connection circuit.

[0011] Optionally, the model of the wireless transmission circuit board is A78C2G4A07S1.

[0012] Optionally, the control circuit includes a controller, and a model of the controller is PY32F002A.

[0013] Optionally, the water temperature detection circuit includes: a thermistor, a first resistor and a first capacitor; one end of the first resistor is connected to a power supply, and the other end of the first resistor is connected to one end of the thermistor, one end of the first capacitor and the multi-channel multi-way switch; the other end of the thermistor is connected to the other end of the first capacitor.

[0014] Optionally, the water flow detection circuit includes: a second resistor, a second capacitor and a third capacitor; one end of the second capacitor is respectively connected to the power supply, one end of the second resistor and the third terminal; the other end of the second capacitor is respectively connected to one end of the third capacitor, the second terminal and the ground terminal, and the other end of the third capacitor is respectively connected to the other end of the second resistor, the first terminal and the control circuit.

[0015] Optionally, the power conversion circuit includes: a fuse, a high output current PWM converter, a bidirectional transient suppression diode, a voltage regulator diode, a filter capacitor, a fourth capacitor, a fifth capacitor, a first diode, an inductor, a third resistor, a fourth resistor, a sixth capacitor, a polarized capacitor, a second diode, a light emitting diode and a fifth resistor;

[0016] The seventh pin of the high output current PWM converter is respectively connected to one end of the fuse, one end of the bidirectional transient suppression diode, the cathode of the voltage regulator diode, the anode of the filter capacitor and one end of the fourth capacitor; the other end of the fuse is respectively connected to the control circuit, the multi-channel multi-way switch, the water flow detection circuit and the water temperature detection circuit;

[0017] The eighth pin of the high output current PWM converter is respectively connected to the first pin of the high output current PWM converter, the cathode of the first diode and one end of the inductor, and the anode of the first diode is grounded;

[0018] The fourth pin of the high output current PWM converter is respectively connected to one end of the third resistor and one end of the fourth resistor; the other end of the fourth resistor, the other end of the inductor, one end of the sixth capacitor, the positive electrode of the polarized capacitor and the positive electrode of the second diode are connected; the negative electrode of the second diode and the positive electrode of the light emitting diode are connected to the power supply; the negative electrode of the light emitting diode is connected to one end of the fifth resistor;

[0019] The other end of the bidirectional transient suppression diode, the anode of the voltage regulator diode, the cathode of the filter capacitor, the other end of the fourth capacitor, the sixth pin of the high output current PWM converter, the ninth pin of the high output current PWM converter, the other end of the third resistor, the other end of the sixth capacitor, the cathode of the polarized capacitor and the other end of the five resistors are connected.

[0020] Optionally, the model of the multi-channel multi-way switch is CD4051.

[0021] According to the specific embodiments provided by the utility model, the utility model discloses the following technical effects:

[0022] The utility model provides a water distributor including multiple channels, and provides a water flow detection circuit and a water temperature detection circuit in each channel to simultaneously measure the water temperature and water volume of each channel. The water temperature detection circuit is connected to the control circuit through a multi-channel multi-way switch. The single channel of the multi-channel multi-way switch can be opened and closed to realize the collection of the water temperature of the target channel according to one's own needs, which is convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 A circuit diagram of the wireless transmission antenna provided by the utility model;

[0025] Figure 2 A circuit diagram of a control circuit provided by the utility model;

[0026] Figure 3 A circuit diagram of a multi-channel multi-way switch provided by the utility model;

[0027] Figure 4 A circuit diagram of a water temperature detection circuit provided by the utility model;

[0028] Figure 5 A circuit diagram of a water flow detection circuit provided by the utility model;

[0029] Figure 6 The utility model provides a circuit diagram of the power conversion circuit.

[0030] Explanation of symbols:

[0031] Wireless transmission circuit board-Z1, first connection circuit-1, second connection circuit-2, controller-U2, thermistor-RT1, first resistor-R1, first capacitor-C1, second resistor-R2, second capacitor-C2, third capacitor-C3, fuse-F1, high output current PWM converter-U4, bidirectional transient suppression diode-ESD1, voltage regulator diode-D1, filter capacitor-EC1, fourth capacitor-C4, fifth capacitor-C5, first diode-D2, inductor-DL1, third resistor-R3, fourth resistor-R4, sixth capacitor-C6, polarized capacitor-EC2, second diode-D3, light-emitting diode-LED1, fifth resistor-R5. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] The utility model provides a water flow and water temperature detection device for a cooling system of an automobile brake hub, comprising: a water distributor, a control circuit, a multi-channel multi-way switch, a water flow detection circuit and a water temperature detection circuit; the water distributor comprises a plurality of water distribution channels; the number of the water distribution channels is the same as the number of automobile brake hubs, and one water distribution channel corresponds to one automobile brake hub; the water inlet of the water distribution channel is connected to the water outlet of the corresponding automobile brake hub, and the water outlet of the water distribution channel is connected to the water inlet of the corresponding automobile brake hub; the water flow detection circuit and the water temperature detection circuit are arranged in each of the water distribution channels; the multi-channel multi-way switch and the water flow detection circuit are connected to the control circuit; the water temperature detection circuits in each of the water distribution channels are connected to the control circuit through the multi-channel multi-way switch, and one water temperature detection circuit corresponds to one channel in the multi-channel multi-way switch; the control circuit is connected to an on-board receiver, and is used for transmitting the water flow detected by the water flow detection circuit and the water temperature detected by the water temperature detection circuit to the on-board receiver, and the on-board receiver can make a voice reminder when the temperature is too high.

[0035] In actual application, the water flow and water temperature detection device of the automobile brake hub cooling system also includes: a power conversion circuit, the control circuit, the multi-channel multi-way switch, the water flow detection circuit and the water temperature detection circuit are all connected to the power supply through the power conversion circuit, and the power conversion circuit can realize input DC 9V-24V and output 5V.

[0036] In actual application, the water divider includes: a wireless transmission antenna, a base plate and six water diversion channels; the six water diversion channels are all arranged on the base plate and are located on the same side of the base plate; the first water diversion channel, the second water diversion channel and the third water diversion channel are arranged in parallel at one end of the base plate, and the fourth water diversion channel, the fifth water diversion channel and the sixth water diversion channel are arranged in parallel at the other end of the base plate, and the first water diversion channel is not parallel to the fourth water diversion channel; the control circuit is connected to the vehicle-mounted receiver through the wireless transmission antenna. A water divider has 6 channels. If they are not used up, the corresponding channels must be connected in the order of the corresponding axles. If they are cross-connected, the displayed data will not match. If the number of channels used exceeds 6, one more water divider can be added for connection. The added water divider channels will start from channel 7, and so on. A maximum of 12 channels can be supported.

[0037] In actual application, the working power supply of the water distributor is DC9V~24V, the working current is <130mA, the working temperature is -25℃~65℃, the water temperature detection range is -40℃~100℃ (normal pressure), the water flow detection range is 1-30L / min, and the wireless frequency is zigbee 2.4G.

[0038] In practical applications, the technical parameters of the vehicle receiver are:

[0039] Working power supply: 5V (TYPE-C interface), working current: <150mA, working temperature: -25℃~65℃, display screen: 4.3 inches, resolution 800*480, touch mode: capacitive touch screen, number of alarm records: 7000, speaker parameters: 8Ω / 2W, installation environment: in the cab, number of sensor terminals supported: maximum 2, alarm temperature value: 80℃.

[0040] In practical applications, such as Figure 1 As shown, the wireless transmission antenna includes: a wireless transmission circuit board Z1, a first connection circuit 1 and a second connection circuit 2, and the wireless transmission circuit board Z1 is connected to the control circuit through the first connection circuit 1 and the second connection circuit 2.

[0041] In practical applications, the model of the wireless transmission circuit board Z1 is A78C2G4A07S1.

[0042] In practical applications, such as Figure 2 As shown, the control circuit includes a controller U2, the model of the controller U2 is PY32F002A, and communicates with the Figure 1 The UART0_RX and UART0_TX connections in the wireless transmission circuit board Z1 are shown.

[0043] In practical applications, such as Figure 3 As shown, the multi-channel multi-way switch is CD4051, which is connected to the Figure 2 The SEL_A, SEL_B, and SEL_C connections in controller U2 are shown.

[0044] In practical applications, such as Figure 4 As shown, the water temperature detection circuit includes: a thermistor RT1, a first resistor R1 and a first capacitor C1; one end of the first resistor R1 is connected to a power supply, and the other end of the first resistor R1 is connected to one end of the thermistor RT1, one end of the first capacitor C1 and the multi-channel multi-way switch; the other end of the thermistor RT1 is connected to the other end of the first capacitor C1, and the other end of the first resistor R1, one end of the thermistor RT1 and one end of the first capacitor C1 in the water temperature detection circuit in the first path are connected to Figure 3 The TEMP1 port in the multi-channel multi-way switch is connected to the other end of the first resistor R1, one end of the thermistor RT1 and one end of the first capacitor C1 in the water temperature detection circuit in the second path. Figure 3The TEMP2 port in the multi-channel multi-way switch is connected to the other end of the first resistor R1, one end of the thermistor RT1 and one end of the first capacitor C1 in the water temperature detection circuit in the third path. Figure 3 The TEMP3 port in the multi-channel multi-way switch is connected, and the other end of the first resistor R1, one end of the thermistor RT1 and one end of the first capacitor C1 in the water temperature detection circuit in the fourth path are connected to Figure 3 The TEMP4 port in the multi-channel multi-way switch is connected, and the other end of the first resistor R1, one end of the thermistor RT1 and one end of the first capacitor C1 in the water temperature detection circuit in the fifth channel are connected to Figure 3 The TEMP5 port in the multi-channel multi-way switch is connected to the other end of the first resistor R1, one end of the thermistor RT1 and one end of the first capacitor C1 in the water temperature detection circuit in the sixth channel. Figure 3 The TEMP6 port connections within a multi-channel multiplexer are shown.

[0045] In practical applications, such as Figure 5 As shown, the water flow detection circuit is a Hall sensor, including: a second resistor R2, a second capacitor C2 and a third capacitor C3; one end of the second capacitor C2 is respectively connected to the power supply, one end of the second resistor R2 and the third terminal; the other end of the second capacitor C2 is respectively connected to one end of the third capacitor C3, the second terminal and the ground terminal, the other end of the third capacitor C3 is respectively connected to the other end of the second resistor R2, the first terminal and the control circuit, and the other end of the third capacitor C3, the other end of the second resistor R2 and the first terminal in the water flow detection circuit in the first passage are connected to Figure 2 The HL1 port of the controller U2 is connected, and the other end of the third capacitor C3, the other end of the second resistor R2 and the first terminal in the water flow detection circuit in the second passage are connected. Figure 2 The HL2 port of the controller U2 is connected, and the other end of the third capacitor C3, the other end of the second resistor R2 and the first terminal in the water flow detection circuit in the third passage are connected. Figure 2 The HL3 port of the controller U2 is connected, and the other end of the third capacitor C3, the other end of the second resistor R2 and the first terminal in the water flow detection circuit in the fourth passage are connected to Figure 2 The HL4 port of the controller U2 is connected, and the other end of the third capacitor C3, the other end of the second resistor R2 and the first terminal in the water flow detection circuit in the fifth passage are connected to Figure 2 The HL5 port of the controller U2 is connected, and the other end of the third capacitor C3, the other end of the second resistor R2 and the first terminal in the water flow detection circuit in the sixth passage are connected to Figure 2 The HL6 port of controller U2 is shown connected.

[0046] In practical applications, such as Figure 6 As shown, the power conversion circuit includes: a fuse F1, a high output current PWM converter U4, a bidirectional transient suppression diode ESD1, a voltage regulator diode D1, a filter capacitor EC1, a fourth capacitor C4, a fifth capacitor C5, a first diode D2, an inductor DL1, a third resistor R3, a fourth resistor R4, a sixth capacitor C6, a polarized capacitor EC2, a second diode D3, a light emitting diode LED1 and a fifth resistor R5.

[0047] The seventh pin of the high output current PWM converter U4 is respectively connected to one end of the fuse F1, one end of the bidirectional transient suppression diode ESD1, the cathode of the voltage stabilizing diode D1, the anode of the filter capacitor EC1 and one end of the fourth capacitor C4; the other end of the fuse F1 is respectively connected to the control circuit, the multi-channel multi-way switch, the water flow detection circuit and the water temperature detection circuit.

[0048] The eighth pin of the high output current PWM converter U4 is respectively connected to the first pin of the high output current PWM converter U4, the cathode of the first diode D2 and one end of the inductor DL1, and the anode of the first diode D2 is grounded.

[0049] The fourth pin of the high output current PWM converter U4 is respectively connected to one end of the third resistor R3 and one end of the fourth resistor R4; the other end of the fourth resistor R4, the other end of the inductor DL1, one end of the sixth capacitor C6, the positive electrode of the polarized capacitor EC2 and the positive electrode of the second diode D3 are connected; the cathode of the second diode D3 and the positive electrode of the light-emitting diode LED1 are connected to the power supply; the cathode of the light-emitting diode LED1 is connected to one end of the fifth resistor R5.

[0050] The other end of the bidirectional transient suppression diode ESD1, the positive electrode of the voltage regulator diode D1, the negative electrode of the filter capacitor EC1, the other end of the fourth capacitor C4, the sixth pin of the high output current PWM converter U4, the ninth pin of the high output current PWM converter U4, the other end of the third resistor R3, the other end of the sixth capacitor C6, the negative electrode of the polarized capacitor EC2 and the other end of the five resistors are connected.

[0051] In practical applications, the high output current PWM converter U4 is model TPS5430DDAR with good stability.

[0052] In the power conversion circuit provided by the utility model, a bidirectional transient suppression diode ESD1 is adopted to realize an electrostatic protection function, a voltage stabilizing diode D1 is used to realize an overvoltage protection function, and a filtering function is realized by a filtering capacitor EC1.

[0053] The utility model has the following advantages:

[0054] The main function of the utility model is to monitor the temperature of the brake hub of the truck in real time. The water tank of the truck is connected to the water distributor of the utility model through a water pipe. The water distributor is equipped with a water flow sensor and a temperature sensor. The water flow sensor can monitor the water flow in real time, and the temperature sensor can detect the water temperature. The water distributor transmits the water flow and water temperature to the on-board receiver in the cab wirelessly. The on-board receiver can display the water flow and water temperature in real time. When the water temperature is too high and the water flow is too low, the driver is reminded by voice, and the abnormality is handled in time to avoid abnormal braking caused by excessive brake hub temperature, thereby protecting the safety of people and vehicles, and the records of excessively high temperature and excessively low water flow will be saved locally in the on-board receiver.

[0055] The water flow detection circuit provided by the utility model can detect the change of water flow in the water pipe in real time, convert it into a pulse signal and output it to the controller U2. The controller U2 uses an interrupt method to quickly and parallelly collect 6 Hall sensor signals, thereby obtaining water flow data and improving the collection speed.

[0056] Each circuit is designed with bypass filter capacitor EC1 to resist the interference of high-frequency harmonics.

[0057] By using a multi-channel multi-way switch to implement analog switch channel switching for multi-channel signal acquisition, the performance requirements of the controller U2 are reduced, thereby reducing the cost of the controller U2.

[0058] The power conversion circuit of the utility model adopts the TI chip solution to achieve a wide voltage input of 9V24V, which meets the commonly used industrial voltage range on the market, has good stability and strong compatibility.

[0059] Wiring-free wireless data transmission, open distance up to 100m, temperature and water flow refresh time less than 2 seconds, voice prompt when temperature is too high.

[0060] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0061] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. At the same time, for those skilled in the art, according to the ideas of the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A water flow and water temperature detection device for a vehicle brake hub cooling system, characterized in that: include: Water distributor, control circuit, multi-channel multi-way switch, water flow detection circuit and water temperature detection circuit; The water distributor comprises a plurality of water distribution channels; the number of the water distribution channels is the same as the number of the automobile brake hubs, and one water distribution channel corresponds to one automobile brake hub; the water inlet of the water distribution channel is connected to the water outlet of the corresponding automobile brake hub, and the water outlet of the water distribution channel is connected to the water inlet of the corresponding automobile brake hub; the water flow detection circuit and the water temperature detection circuit are arranged in each of the water distribution channels; The multi-channel multi-way switch and the water flow detection circuit are both connected to the control circuit; the water temperature detection circuits in each of the water diversion channels are connected to the control circuit through the multi-channel multi-way switch, and one water temperature detection circuit corresponds to one channel in the multi-channel multi-way switch; The control circuit is connected to a vehicle-mounted receiver and is used to transmit the water flow detected by the water flow detection circuit and the water temperature detected by the water temperature detection circuit to the vehicle-mounted receiver.

2. The water flow and water temperature detection device for the automobile brake hub cooling system according to claim 1, characterized in that: Also includes: A power conversion circuit, the control circuit, the multi-channel multi-way switch, the water flow detection circuit and the water temperature detection circuit are all connected to a power source through the power conversion circuit.

3. The water flow and water temperature detection device for the automobile brake hub cooling system according to claim 1, characterized in that: The water diverter includes: a wireless transmission antenna, a base plate and six water diversion channels; the six water diversion channels are all arranged on the base plate and located on the same side of the base plate; the first water diversion channel, the second water diversion channel and the third water diversion channel are arranged in parallel at one end of the base plate, the fourth water diversion channel, the fifth water diversion channel and the sixth water diversion channel are arranged in parallel at the other end of the base plate, and the first water diversion channel is not parallel to the fourth water diversion channel; the control circuit is connected to the vehicle-mounted receiver through the wireless transmission antenna.

4. The water flow and water temperature detection device for the automobile brake hub cooling system according to claim 3, characterized in that: The wireless transmission antenna includes: a wireless transmission circuit board, a first connection circuit and a second connection circuit. The wireless transmission circuit board is connected to the control circuit via the first connection circuit and the second connection circuit.

5. The water flow and water temperature detection device for the automobile brake hub cooling system according to claim 4, characterized in that: The model of the wireless transmission circuit board is A78C2G4A07S1.

6. The water flow and water temperature detection device for the automobile brake hub cooling system according to claim 1, characterized in that: The control circuit includes a controller, and the model of the controller is PY32F002A.

7. The water flow and water temperature detection device for the automobile brake hub cooling system according to claim 1, characterized in that: The water temperature detection circuit includes: a thermistor, a first resistor and a first capacitor; one end of the first resistor is connected to a power supply, and the other end of the first resistor is connected to one end of the thermistor, one end of the first capacitor and the multi-channel multi-way switch; the other end of the thermistor is connected to the other end of the first capacitor.

8. The water flow and water temperature detection device for the automobile brake hub cooling system according to claim 1, characterized in that: The water flow detection circuit includes: a second resistor, a second capacitor and a third capacitor; one end of the second capacitor is respectively connected to a power supply, one end of the second resistor and a third terminal; the other end of the second capacitor is respectively connected to one end of the third capacitor, the second terminal and the ground terminal, and the other end of the third capacitor is respectively connected to the other end of the second resistor, the first terminal and the control circuit.

9. The water flow and water temperature detection device for the automobile brake hub cooling system according to claim 2, characterized in that: The power conversion circuit includes: a fuse, a high output current PWM converter, a bidirectional transient suppression diode, a voltage regulator diode, a filter capacitor, a fourth capacitor, a fifth capacitor, a first diode, an inductor, a third resistor, a fourth resistor, a sixth capacitor, a polar capacitor, a second diode, a light emitting diode and a fifth resistor; The seventh pin of the high output current PWM converter is respectively connected to one end of the fuse, one end of the bidirectional transient suppression diode, the cathode of the voltage regulator diode, the anode of the filter capacitor and one end of the fourth capacitor; the other end of the fuse is respectively connected to the control circuit, the multi-channel multi-way switch, the water flow detection circuit and the water temperature detection circuit; The eighth pin of the high output current PWM converter is respectively connected to the first pin of the high output current PWM converter, the cathode of the first diode and one end of the inductor, and the anode of the first diode is grounded; The fourth pin of the high output current PWM converter is respectively connected to one end of the third resistor and one end of the fourth resistor; the other end of the fourth resistor, the other end of the inductor, one end of the sixth capacitor, the positive electrode of the polarized capacitor and the positive electrode of the second diode are connected; the negative electrode of the second diode and the positive electrode of the light emitting diode are connected to the power supply; the negative electrode of the light emitting diode is connected to one end of the fifth resistor; The other end of the bidirectional transient suppression diode, the anode of the voltage regulator diode, the cathode of the filter capacitor, the other end of the fourth capacitor, the sixth pin of the high output current PWM converter, the ninth pin of the high output current PWM converter, the other end of the third resistor, the other end of the sixth capacitor, the cathode of the polarized capacitor and the other end of the five resistors are connected.

10. The water flow and water temperature detection device for the automobile brake hub cooling system according to claim 1, characterized in that: The model of the multi-channel multi-way switch is CD4051.

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