A vehicle gear shift recognition circuit, gear shift system and vehicle

Abstract

The utility model discloses a vehicle gear shift identification circuit, a gear shift system and a vehicle, and relates to the field of vehicle control. The second ends of all first resistors are connected to the vehicle controller through a signal interface of the same vehicle controller, so as to realize serial communication between the gear position signal and the vehicle controller. When the gear shift device moves to a different gear position, the sensor corresponding to the gear position will output a low level, and the first resistor connected between the output end of the sensor and a power supply will output a corresponding voltage signal to the signal interface of the vehicle controller. At the same time, since the resistance values ​​of the first resistors corresponding to the various sensors are not equal, the magnitudes of the voltage signals output by the first resistors corresponding to different sensors are different, and the vehicle controller will identify the sensor of the current output signal according to the magnitude of the received voltage signal, so as to realize the identification process of the current gear position. Only one interface of the vehicle controller is needed, so the resources of the vehicle controller are greatly saved.

Description

Technical Field

[0001] The utility model relates to the field of vehicle control, in particular to a vehicle gear shift identification circuit, a gear shift system and a vehicle. Background Art

[0002] The shift-by-wire system is a system that uses the vehicle controller to engage / change the transmission mode in the car, which can realize the vehicle's gear shifting operation and has been widely used in vehicles such as electric vehicles. After each gear shift, the vehicle controller needs to determine the vehicle's current gear signal in order to accurately control the vehicle. However, in many cases, the interface resources of the vehicle controller are limited. How to realize the recognition of the gear signal while saving the occupied interface resources has become a technical problem that needs to be solved urgently. Utility Model Content

[0003] The purpose of the utility model is to provide a vehicle gear shift identification circuit, a gear shift system and a vehicle, which can realize serial communication between the gear position signal and the vehicle controller. The vehicle controller can identify the sensor of the current output signal according to the size of the received voltage signal, thereby realizing the identification process of the current gear position; only one interface of the vehicle controller is needed, which greatly saves the resources of the vehicle controller.

[0004] In order to solve the above technical problems, the utility model provides a vehicle shift recognition circuit, comprising:

[0005] A plurality of sensors corresponding to a plurality of gear positions of the vehicle, wherein the input end is connected to the gear shift device of the vehicle, the power end is connected to the power supply, and the ground end is grounded, and is used to output a low-level signal when the gear shift device moves to the gear position corresponding to itself, and the output is suspended when the gear shift device does not move to the gear position corresponding to itself; the gear shift device moves between the gear positions of the vehicle to realize gear shifting;

[0006] a plurality of first resistors connected to the output ends of the plurality of sensors in a one-to-one correspondence, wherein the first ends are connected to the output ends of the corresponding sensors; and the resistance values ​​of the plurality of first resistors are not equal to each other;

[0007] The second ends of a plurality of the first resistors are connected to each other and are respectively connected to the power supply and the signal interface of the vehicle controller of the vehicle.

[0008] Optionally, also include:

[0009] A second resistor has a first end connected to the power supply, and a second end respectively connected to the second end of the first resistor, a signal interface of a vehicle controller of the vehicle, and the second end of the first resistor.

[0010] Optionally, also include:

[0011] The first capacitor has a first end connected to the signal interface of the vehicle controller of the vehicle, the second end of the first resistor and the second end of the second resistor respectively, and a second end grounded.

[0012] Optionally, the shift device is an electromagnet, and the sensor is a Hall sensor; the Hall sensor includes:

[0013] A third resistor, a first end of which is connected to the power supply;

[0014] A switch device, wherein the first end serves as the output end of the Hall sensor, the second end is grounded and connected to the second end of the third resistor, and the control end is connected to the shift device of the vehicle, and is used for being turned on when the shift device moves to its corresponding gear position, and being turned off when the shift device does not move to its corresponding gear position.

[0015] Optionally, also include:

[0016] A power supply port, a first end of which is connected to a power supply port of a vehicle controller of the vehicle, and a second end of which is respectively connected to a second end of the first resistor, a signal interface of the vehicle controller of the vehicle, and a second end of the first resistor, for providing power supply to a gear shift identification circuit of the vehicle through the vehicle controller.

[0017] Optionally, for any sensor, the gear shift recognition circuit of the vehicle further includes:

[0018] a fourth resistor, a first end of which is connected to a power supply terminal of the sensor;

[0019] The second capacitor has a first end connected to the power supply and the second end of the fourth resistor respectively, and a second end connected to the ground.

[0020] Optionally, for any sensor, the gear shift recognition circuit of the vehicle further includes:

[0021] A fifth resistor, a first end of which is connected to the power supply;

[0022] The third capacitor has a first end connected to the second end of the fifth resistor and the power supply end of the sensor respectively, and a second end connected to the ground and the ground end of the sensor.

[0023] Optionally, also include:

[0024] a sixth resistor, a first end of which is respectively connected to the power supply and the first end of the fifth resistor;

[0025] A fourth capacitor has a first end connected to the output end of the sensor and the second end of the sixth resistor respectively, and a second end connected to the ground.

[0026] In order to solve the above technical problems, the utility model also provides a gear shifting system, including a gear shifting device and a gear shifting identification circuit of the vehicle as described above.

[0027] In order to solve the above technical problems, the utility model also provides a vehicle, including a vehicle controller and the gear shifting system as described above, wherein the output end of the gear shifting system is connected to the vehicle controller.

[0028] The utility model provides a vehicle shift identification circuit, comprising a plurality of sensors corresponding to a plurality of gear positions of the vehicle and a first resistor, the output end of each sensor is connected to a corresponding first resistor, and the second ends of all the first resistors are connected to the vehicle controller through the same signal interface of the vehicle controller, so as to realize serial communication between the gear position signal and the vehicle controller; when the shift device moves to a different gear position, the sensor corresponding to the gear position will output a low level, and the first resistor connected between the output end of the sensor and the power supply will output a corresponding voltage signal to the signal interface of the vehicle controller, and at the same time, since the resistance values ​​of the first resistors corresponding to the various sensors are not equal, the magnitudes of the voltage signals output by the first resistors corresponding to different sensors are different, and the vehicle controller can identify the sensor of the current output signal according to the magnitude of the received voltage signal, thereby realizing the identification process of the current gear position; only one interface of the vehicle controller is needed, which greatly saves the resources of the vehicle controller.

[0029] The utility model also provides a gear shifting system and a vehicle, which have the same beneficial effects as the gear shifting identification circuit of the above-mentioned vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the prior art and the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 A schematic diagram of the structure of a vehicle shift recognition circuit provided by the utility model;

[0032] Figure 2 A schematic diagram of the structure of another vehicle shift recognition circuit provided by the utility model;

[0033] Figure 3 A schematic diagram of a vehicle gear position provided by the utility model;

[0034] Figure 4 The present invention provides a schematic structural diagram of a sensor. DETAILED DESCRIPTION

[0035] The core of the utility model is to provide a vehicle gear shift identification circuit, a gear shift system and a vehicle, which can realize serial communication between the gear position signal and the vehicle controller. The vehicle controller can identify the sensor of the current output signal according to the size of the received voltage signal, thereby realizing the identification process of the current gear position; only one interface of the vehicle controller is needed, which greatly saves the resources of the vehicle controller.

[0036] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0037] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle shift recognition circuit provided by the utility model; please refer to Figure 2 , Figure 2 This is a structural diagram of another vehicle shift recognition circuit provided by the utility model; please refer to Figure 3 , Figure 3 A schematic diagram of a vehicle gear position provided by the utility model; In order to solve the above technical problems, the utility model provides a vehicle shift recognition circuit, including:

[0038] A plurality of sensors 1 corresponding to a plurality of gear positions of the vehicle, the input end of which is connected to the gear shift device of the vehicle, the power end of which is connected to the power supply VDD, and the ground end of which is grounded, and is used to output a low-level signal when the gear shift device moves to the gear position corresponding to itself, and the output is suspended when the gear shift device does not move to the gear position corresponding to itself; the gear shift device moves between the gear positions of the vehicle to realize gear shifting;

[0039] A plurality of first resistors 2 connected to the output ends of the plurality of sensors 1 in one-to-one correspondence, wherein the first ends are connected to the output ends of the corresponding sensors 1; the resistance values ​​of the plurality of first resistors 2 are not equal to each other;

[0040] The second ends of the plurality of first resistors 2 are connected to each other and are respectively connected to a power supply VDD and a signal interface of a vehicle controller VCU of the vehicle.

[0041] Specifically, the vehicle itself will have multiple gear positions to choose from, and the shift device will move between different gear positions under the operation of the driver to realize the vehicle's shifting process. A number of sensors 1 are set in the shift identification circuit, which are connected to each gear position in a one-to-one correspondence. When the shift device moves to a certain gear position, the sensor 1 corresponding to the gear position will output a low-level signal, and the sensors 1 corresponding to other gear positions will keep the output suspended and not output a level signal; when a sensor 1 in the circuit outputs a low-level signal, there is a voltage difference between the output end of the sensor 1 and the power supply VDD, forming a loop, and the current flows from the power supply VDD through the first resistor 2 corresponding to the sensor 1 to the output end of the sensor 1. At this time, a voltage difference is formed at both ends of the first resistor 2, and the second end of the first resistor 2 can output its own voltage difference in the form of a voltage signal to the signal interface of the vehicle controller VCU, as a gear signal to facilitate control system recognition. For different sensors 1, the resistance values ​​of the corresponding first resistor 2 are different. Therefore, for different gear positions, the voltage signal output from the second end of the first resistor 2 has different voltage values. The vehicle controller VCU can realize the identification process of the current gear position according to the different sizes of the received voltage signal.

[0042] It should be noted that the specific types and implementation methods of each sensor 1 and the corresponding first resistor 2 are not specifically limited in this application. The specific values ​​of the resistance of each first resistor 2 can also be set and adjusted according to the specific conditions of each gear position in the actual application, and the application does not make special restrictions here. Considering that the voltage signal output by the first resistor 2 to the vehicle controller VCU is an analog signal, the vehicle controller VCU needs to identify the voltage values ​​of different voltage signals. Therefore, the signal interface of the vehicle controller VCU can be implemented through the AD interface. The specific types and implementation methods of the vehicle controller VCU and the shifting device are not specifically limited in this application. The identification process of the gear signal is not limited to the vehicle controller VCU for identification, but can also be other control systems in the vehicle. The specific type, value and implementation method of the power supply VDD are not specifically limited in this application, and the power supply VDD in the vehicle shifting system can be directly reused. The specific number of gear positions needs to be determined according to the actual situation of the vehicle, so the number of sensors 1 and the corresponding first resistors 2 also needs to be flexibly adjusted according to the actual application.

[0043] As a specific embodiment, the gear shift recognition circuit of the vehicle is provided with a power supply port X2-10, which is connected to the power supply (VCU_VDD) of the vehicle controller VCU, and directly reuses the power supply of the vehicle controller VCU for 5V power supply. At the same time, an output port X2-9 is provided to connect to the AD interface (VCU_AD) of the vehicle controller VCU. For example, the gear shift device is an electromagnet, sensor 1 is a HALL sensor, and the vehicle has three gears. When the vehicle shifts gears, the electromagnet moves in the three gear positions (H1, H2, H3), such as Figure 3 As shown, the power supply VDD is a 5V power supply. Position 1 corresponds to the first Hall sensor I1, and its corresponding first resistor 2 is a 24KΩ resistor R11; Position 2 corresponds to the second Hall sensor I2, and its corresponding first resistor 2 is a 8.45KΩ resistor R12; Position 3 corresponds to the third Hall sensor I3, and its corresponding first resistor 2 is a 2.7KΩ resistor R13. When the electromagnet (S pole) moves to position 1, the first Hall sensor I1 will output a low level, that is, I1_out outputs a low level, and at this time the output level of the output port X2-9 is 5V*R11 / (R2+R11)=5*24 / (10+24)=3.5V. When the electromagnet (S pole) moves to position 2, the second Hall sensor I2 outputs a low level, and I2_out outputs a low level. At this time, the output level of the output port X2-9 is 5V*R12 / (R2+R12)=5*8.45 / (10+8.45)=2.3V. When the electromagnet (S pole) moves to position 3, the third Hall sensor I3 outputs a low level, and I3_out outputs a low level. At this time, the output level of the output port X2-9 is 5V*R13 / (R2+R13)=5*2.7 / (10+2.7)=1.1V. The electronic control device of the vehicle's wire control system receives the output signal of the output port X2-9, and performs AD (analog-to-digital) conversion on the received signal to realize the recognition process of the current gear position and make corresponding processing.

[0044] It can be understood that the present application distinguishes the gear positions corresponding to each sensor 1 by utilizing the different resistance values ​​of the first resistor 2 connected to the output end of the sensor 1. The entire gear recognition circuit only needs to occupy one interface of the vehicle controller VCU, thereby realizing serial communication of multiple gear signals. When the interface resources of the vehicle controller VCU are tight, serial communication can be adopted to realize the transmission of multiple sensor 1 signals; and the interference between the gear signals corresponding to each sensor 1 can be reduced.

[0045] The utility model provides a vehicle shift recognition circuit, comprising a plurality of sensors 1 and a first resistor 2 corresponding to a plurality of gear positions of the vehicle, wherein the output end of each sensor 1 is connected to a corresponding first resistor 2, and the second ends of all the first resistors 2 are connected to the vehicle controller VCU through the same signal interface of the vehicle controller VCU, so as to realize serial communication between the gear position signal and the vehicle controller VCU; when the shift device moves to a different gear position, the sensor 1 corresponding to the gear position will output a low level, and the first resistor 2 connected between the output end of the sensor 1 and the power supply VDD will output a corresponding voltage signal to the signal interface of the vehicle controller VCU, and at the same time, since the resistance values ​​of the first resistors 2 corresponding to each sensor 1 are not equal, the magnitudes of the voltage signals output by the first resistors 2 corresponding to different sensors 1 are different, and the vehicle controller VCU can identify the sensor 1 of the current output signal according to the magnitude of the received voltage signal, thereby realizing the recognition process of the current gear position; only one interface of the vehicle controller VCU is needed, which greatly saves the resources of the vehicle controller VCU.

[0046] Based on the above embodiments:

[0047] As an optional embodiment, it also includes:

[0048] The second resistor R2 has a first end connected to the power supply VDD, and a second end connected to the second end of the first resistor 2, a signal interface of a vehicle controller VCU of the vehicle, and the second end of the first resistor 2 respectively.

[0049] It is understandable that in order to realize the shift identification circuit more flexibly, a second resistor R2 can be further added between the power supply VDD and the second end of the first resistor 2. The second resistor R2 and each first resistor 2 respectively constitute a voltage divider circuit, so that the gear position signal finally output to the signal interface of the vehicle controller VCU is a voltage signal after the voltage divider circuit, avoiding the potential safety hazard caused by the excessive voltage at the second end of the first resistor 2. At the same time, by adjusting the resistance value of the second resistor R2, the voltage distribution ratio between the second resistor R2 and the first resistor 2 can be adjusted, which is suitable for different types of vehicle controllers VCU and control systems. The specific type, resistance value and implementation method of the second resistor R2 are not particularly limited in this application. Figure 2 As shown, this can be achieved with a 10KΩ resistor.

[0050] Specifically, by adding a second resistor R2 in the circuit, the gear signal is adjusted from a voltage signal directly output by the first resistor 2 to a voltage signal after voltage division between the first resistor 2 and the second resistor R2, thereby improving the stability and reliability of the gear signal and avoiding safety hazards such as interface damage caused by excessive voltage signal directly output by the first resistor 2; at the same time, the second resistor R2 can also be used to further improve the flexibility of the entire gear recognition circuit and expand the scope of application of the entire gear recognition circuit.

[0051] As an optional embodiment, it also includes:

[0052] The first capacitor C1 has a first end connected to a signal interface of a vehicle controller VCU of the vehicle, a second end of the first resistor 2 and a second end of the second resistor R2, and a second end thereof is grounded.

[0053] It is not difficult to understand that in order to further improve the accuracy of the gear position signal output to the signal interface, a grounded first capacitor C1 can be further added to the circuit. The first capacitor C1 is set between the common connection point of each first resistor 2 and the signal interface, which can play a role in filtering and stabilizing voltage, thereby improving the anti-interference ability and accuracy of the gear position signal finally output. The specific type and implementation method of the first capacitor C1 are not particularly limited in this application.

[0054] Specifically, the gear signal can be filtered by adding the first capacitor C1, thereby improving the quality and reliability of the gear signal finally output to the vehicle controller VCU, and effectively ensuring the accuracy of the gear signal output to the vehicle controller VCU; the circuit structure is simple and easy to implement, which is conducive to the simple implementation of the entire gear shift identification circuit.

[0055] Please refer to Figure 4 , Figure 4 This is a schematic diagram of the structure of a sensor provided by the utility model. As an optional embodiment, the shift device is an electromagnet, and the sensor 1 is a Hall sensor; the Hall sensor includes:

[0056] A third resistor R3, a first end of which is connected to the power supply VDD;

[0057] The switching device Q has a first end serving as the output end of the Hall sensor, a second end being grounded and connected to the second end of the third resistor R3, and a control end being connected to the vehicle's shift device, for turning on when the shift device moves to its corresponding gear position, and turning off when the shift device does not move to its corresponding gear position.

[0058] It is not difficult to understand that the current vehicle is usually used for shifting with an electromagnet. Correspondingly, the sensor 1 can be implemented by using a Hall sensor, and the shifting signal is transmitted to the electronic control device of the wire control system through the Hall sensor. The Hall sensor can convert the changing magnetic field into a change in the output voltage. When the electromagnet moves between different gear positions, its corresponding magnetic field changes. The Hall sensor determines whether the current gear position is the gear position corresponding to itself by identifying the change in the magnetic field of the magnet. The Hall sensor specifically includes a third resistor R3 and a switch device Q. The control end of the switch device Q is connected to the magnet. When the magnet moves to the corresponding gear position, the switch device Q is turned on, and the output end is connected to the low to realize the output of the low-level signal. When the magnet does not move to the corresponding gear position, the switch device Q is turned off, and the Hall sensor has no signal output. At the same time, a third resistor R3 is also set in the Hall sensor to realize the power supply process of the Hall sensor. The present application does not make any special limitation on the internal structure of the Hall sensor, including but not limited to the third resistor R3 and the switching device Q of the present embodiment. The present application does not make any special limitation on the specific types and implementation methods of the third resistor R3 and the switching device Q. The switching device Q can be implemented by a controllable switching device such as a controllable switching tube.

[0059] Specifically, the present application utilizes the Hall sensor to identify the magnetic field and proposes a single-channel gear shift recognition circuit based on the HALL sensor. All Hall sensors only occupy one interface of the vehicle controller VCU, saving the resources of the vehicle controller VCU, effectively realizing the recognition process of the gear position signal during the gear shifting process, and improving the stability and reliability of the control system of the entire vehicle.

[0060] As an optional embodiment, it also includes:

[0061] A power supply port, a first end of which is connected to a power supply port of a vehicle controller VCU of the vehicle, and a second end of which is respectively connected to a second end of a first resistor 2, a signal interface of the vehicle controller VCU of the vehicle and a second end of the first resistor 2, and is used to provide a power supply VDD to a gear shift identification circuit of the vehicle through the vehicle controller VCU.

[0062] It is not difficult to understand that, considering that the gear position signal itself needs to be output to the vehicle controller VCU, the power supply VDD of the gear shift identification circuit can also be directly realized by the power supply of the vehicle controller VCU itself. Therefore, a power supply port can be added to the gear shift identification circuit. During the gear position identification process, the power supply port is directly connected to the power supply port of the vehicle controller VCU, and the power supply of the vehicle controller VCU itself is reused to realize the power supply VDD of the entire gear shift identification circuit. The specific type and implementation method of the power supply port are not particularly limited in this application.

[0063] Specifically, the power supply VDD of the entire gear shift identification circuit can be realized by directly reusing the power supply of the vehicle controller VCU, without the need to set up an additional power supply to power the gear shift identification circuit, which further simplifies the gear shift identification circuit, saves costs, reduces the circuit volume, and is conducive to the simple implementation of the control system of the entire vehicle.

[0064] As an optional embodiment, for any sensor 1, the gear shift recognition circuit of the vehicle further includes:

[0065] a fourth resistor, a first end of which is connected to the power supply end of the sensor 1;

[0066] The second capacitor has a first end connected to the power supply VDD and the second end of the fourth resistor respectively, and a second end connected to the ground.

[0067] It is not difficult to understand that in order to improve the stability and reliability of the power supply process of the power supply VDD to the sensor 1, a fourth resistor and a second capacitor can be further provided at the power supply end of the sensor 1. The fourth resistor and the second capacitor can filter the power supply VDD to improve the accuracy of the working process of the sensor 1; at the same time, the power supply VDD can be stabilized to achieve reliable power supply to the sensor 1. The specific type and implementation method of the fourth resistor and the second capacitor are not particularly limited in this application. Figure 2 As shown, the fourth resistor includes a resistor R41 corresponding to the first Hall sensor I1, a resistor R42 corresponding to the second Hall sensor I2, and a resistor R43 corresponding to the third Hall sensor I3, and the second capacitor includes a capacitor C21 corresponding to the first Hall sensor I1, a capacitor C22 corresponding to the second Hall sensor I2, and a capacitor C23 corresponding to the third Hall sensor I3.

[0068] Specifically, a fourth resistor and a second capacitor may be added to the power supply end of the sensor 1 to improve the accuracy and reliability of the power supply VDD to the sensor 1, thereby ensuring the accurate operation of the sensor 1 and the entire gear shift identification circuit; the circuit structure is simple and easy to implement, which is conducive to the simple implementation of the entire gear shift identification circuit.

[0069] As an optional embodiment, for any sensor 1, the gear shift recognition circuit of the vehicle further includes:

[0070] A fifth resistor R5, a first end of which is connected to the power supply VDD;

[0071] The third capacitor C3 has a first end connected to the second end of the fifth resistor R5 and the power supply end of the sensor 1 respectively, and a second end connected to the ground and to the ground end of the sensor 1 .

[0072] It is not difficult to understand that in order to improve the stability and reliability of the power supply process of the power supply VDD to the sensor 1, a fifth resistor R5 and a third capacitor C3 can be further set at the power supply end of the sensor 1. The fifth resistor R5 and the third capacitor C3 can filter the power supply VDD to improve the accuracy of the working process of the sensor 1; at the same time, the third capacitor C3 is connected in parallel between the power supply end and the ground end of the sensor 1, which can realize the voltage stabilization process of the power supply VDD of the sensor 1 and realize reliable power supply to the sensor 1. The specific type and implementation method of the fifth resistor R5 and the third capacitor C3 are not particularly limited in this application.

[0073] Specifically, a fifth resistor R5 and a third capacitor C3 may be added to the power supply end of the sensor 1 to improve the accuracy and reliability of the power supply VDD to the sensor 1, thereby ensuring the accurate operation of the sensor 1 and the entire gear shift identification circuit; the circuit structure is simple and easy to implement, which is conducive to the simple implementation of the entire gear shift identification circuit.

[0074] As an optional embodiment, it also includes:

[0075] A sixth resistor R6, a first end of which is respectively connected to the power supply VDD and the first end of the fifth resistor R5;

[0076] The fourth capacitor C4 has a first end connected to the output end of the sensor 1 and the second end of the sixth resistor R6 respectively, and a second end grounded.

[0077] It is not difficult to understand that in order to further improve the stability and reliability of the level signal output by the sensor 1, a sixth resistor R6 and a fourth capacitor C4 can be added to the output end of the sensor 1. The sixth resistor R6 is connected to the power supply VDD, and the voltage at the output end can be pulled up to the power supply VDD when there is no signal output from the sensor 1. The fourth capacitor C4 is set between the output end of the sensor 1 and the ground, which can stabilize the level signal output by the sensor 1 and play a filtering role, thereby improving the accuracy of the level signal output by the sensor 1. The specific type and implementation method of the sixth resistor R6 and the fourth capacitor C4 are not particularly limited in this application, and the fourth capacitor C4 can also be replaced with a voltage stabilizing device such as a voltage stabilizing diode to achieve it.

[0078] Specifically, a sixth resistor R6 and a fourth capacitor C4 may be added to the output end of the sensor 1 to improve the accuracy and reliability of the level signal output by the sensor 1, thereby ensuring the accurate operation of the sensor 1 and the entire gear shift identification circuit; the circuit structure is simple and easy to implement, which is conducive to the simple implementation of the entire gear shift identification circuit.

[0079] In order to solve the above technical problems, the utility model also provides a gear shifting system, including a gear shifting device and a gear shifting identification circuit of the vehicle as described above.

[0080] It is not difficult to understand that the shift system needs to be implemented in conjunction with the shift identification circuit during application. After each shift is completed, the shift system needs the shift identification circuit to output the current gear position signal to the vehicle controller VCU or the vehicle control system to inform the control system of the current gear position of the vehicle, so as to facilitate the vehicle control system to control the vehicle based on the current gear position of the vehicle. The specific implementation method of the shift system is not particularly limited in this application, including but not limited to the shift device and shift identification circuit described in this embodiment.

[0081] For an introduction to a gear shift system provided by the present invention, please refer to the embodiment of the gear shift identification circuit of the above-mentioned vehicle, and the present invention will not be described in detail here.

[0082] In order to solve the above technical problems, the utility model further provides a vehicle, comprising a vehicle controller VCU and the above-mentioned shifting system, wherein the output end of the shifting system is connected to the vehicle controller VCU.

[0083] It is not difficult to understand that the gear shifting operation of the gear shifting system usually also needs to be controlled by the vehicle controller VCU. Therefore, the gear shifting system and the gear recognition circuit therein need to be connected to the vehicle controller VCU. The specific type and implementation method of the vehicle controller VCU are not specifically limited in this application; the specific setting method of other functional modules of the vehicle is not specifically limited in this application.

[0084] For an introduction to a vehicle provided by the present invention, please refer to the embodiment of the gear shift identification circuit of the above-mentioned vehicle, and the present invention will not be described in detail here.

[0085] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0086] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A gear shift recognition circuit for a vehicle, characterized in that: include: A plurality of sensors corresponding to a plurality of gear positions of the vehicle, wherein the input end is connected to the gear shift device of the vehicle, the power end is connected to the power supply, and the ground end is grounded, and is used to output a low-level signal when the gear shift device moves to the gear position corresponding to itself, and the output is suspended when the gear shift device does not move to the gear position corresponding to itself; the gear shift device moves between the gear positions of the vehicle to realize gear shifting; a plurality of first resistors connected to the output ends of the plurality of sensors in a one-to-one correspondence, wherein the first ends are connected to the output ends of the corresponding sensors; and the resistance values ​​of the plurality of first resistors are not equal to each other; The second ends of a plurality of the first resistors are connected to each other and are respectively connected to the power supply and the signal interface of the vehicle controller of the vehicle.

2. The gear shift recognition circuit for a vehicle according to claim 1, characterized in that: Also includes: A second resistor has a first end connected to the power supply, and a second end respectively connected to the second end of the first resistor, a signal interface of a vehicle controller of the vehicle, and the second end of the first resistor.

3. The vehicle shift recognition circuit according to claim 2, characterized in that: Also includes: The first capacitor has a first end connected to the signal interface of the vehicle controller of the vehicle, the second end of the first resistor and the second end of the second resistor respectively, and a second end grounded.

4. The gear shift recognition circuit for a vehicle according to claim 1, characterized in that: The shift device is an electromagnet, and the sensor is a Hall sensor; the Hall sensor includes: A third resistor, a first end of which is connected to the power supply; A switch device, wherein the first end serves as the output end of the Hall sensor, the second end is grounded and connected to the second end of the third resistor, and the control end is connected to the shift device of the vehicle, and is used for being turned on when the shift device moves to its corresponding gear position, and being turned off when the shift device does not move to its corresponding gear position.

5. The vehicle shift recognition circuit according to claim 1, characterized in that: Also includes: A power supply port, a first end of which is connected to a power supply port of a vehicle controller of the vehicle, and a second end of which is respectively connected to a second end of the first resistor, a signal interface of the vehicle controller of the vehicle, and a second end of the first resistor, for providing power supply to a gear shift identification circuit of the vehicle through the vehicle controller.

6. The gear shift recognition circuit for a vehicle according to any one of claims 1 to 5, characterized in that: For any sensor, the gear shift recognition circuit of the vehicle further includes: a fourth resistor, a first end of which is connected to a power supply terminal of the sensor; The second capacitor has a first end connected to the power supply and the second end of the fourth resistor respectively, and a second end connected to the ground.

7. The gear shift recognition circuit for a vehicle according to any one of claims 1 to 5, characterized in that: For any sensor, the gear shift recognition circuit of the vehicle further includes: A fifth resistor, a first end of which is connected to the power supply; The third capacitor has a first end connected to the second end of the fifth resistor and the power supply end of the sensor respectively, and a second end connected to the ground and the ground end of the sensor.

8. The gear shift recognition circuit for a vehicle according to claim 7, characterized in that: Also includes: a sixth resistor, a first end of which is respectively connected to the power supply and the first end of the fifth resistor; A fourth capacitor has a first end connected to the output end of the sensor and the second end of the sixth resistor respectively, and a second end connected to the ground.

9. A gear shifting system, characterized in that: The invention comprises a gear shift device and a gear shift identification circuit for a vehicle as claimed in any one of claims 1 to 8.

10. A vehicle, characterized in that: It comprises a vehicle controller and the gear shifting system as claimed in claim 9, wherein the output end of the gear shifting system is connected to the vehicle controller.

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