Clutch self-learning control method and device and hybrid vehicle

Abstract

This invention discloses a clutch self-learning control method, device, and hybrid vehicle. The control method includes: determining whether the clutch needs to perform self-learning based on the clutch's learning state signal; if self-learning is required, determining whether the hybrid vehicle meets preset clutch self-learning trigger conditions; if self-learning is not required, determining whether the clutch needs to perform self-learning based on preset relearning conditions; if the determination result is that the preset clutch self-learning trigger conditions are met, then performing clutch self-learning; after the clutch completes self-learning, controlling the hybrid vehicle to enter a pure electric control mode. This application solves the technical problem of frequent engine starts in the prior art where the clutch self-learning process requires engine startup by setting the clutch self-learning trigger conditions after the engine has already started.

Description

Technical Field

[0001] This invention relates to the field of hybrid vehicle technology, and more particularly to a clutch self-learning control method, device, and hybrid vehicle. Background Technology

[0002] Hybrid vehicles have pure electric and hybrid modes. Pure electric mode is favored by drivers due to its low noise and good driving comfort. However, certain reasons may cause the engine to start in pure electric mode, such as the need to start the engine during the clutch self-learning process. This will cause the engine to start frequently, reducing driver comfort and increasing vehicle fuel consumption. Summary of the Invention

[0003] This invention provides a clutch self-learning control method, device, and hybrid vehicle, which solves the technical problem of frequent engine starts caused by the need to start the engine during the clutch self-learning process in the prior art.

[0004] This invention provides a clutch self-learning control method applied to hybrid vehicles, the control method comprising:

[0005] Determine whether the clutch needs to perform self-learning based on the clutch's learning status signal;

[0006] If self-learning is required, it is determined whether the hybrid vehicle meets the preset clutch self-learning trigger condition, wherein the preset clutch self-learning trigger condition is set on the premise that the engine has been started.

[0007] If self-learning is not required, then the clutch is further judged based on the preset relearning conditions to determine whether self-learning is required. If the judgment result is that self-learning is required, the action of judging whether the hybrid vehicle meets the preset clutch self-learning trigger conditions is executed.

[0008] If the judgment result is that the preset clutch self-learning trigger condition is met, then clutch self-learning is performed;

[0009] After the clutch completes its self-learning process, the hybrid vehicle is controlled to enter pure electric control mode.

[0010] Furthermore, determining whether a hybrid vehicle meets the preset clutch self-learning trigger conditions includes:

[0011] Determine whether the hybrid vehicle meets one of the following preset clutch self-learning trigger conditions:

[0012] The hybrid vehicle starts its engine using a vehicle key;

[0013] The hybrid vehicle is in parking power generation mode;

[0014] The hybrid vehicle is in a state that would otherwise cause the engine to start.

[0015] Furthermore, determining whether the clutch needs to undergo self-learning based on preset relearning conditions includes:

[0016] Determine whether the clutch meets one of the following preset relearning conditions. If it does, the clutch needs to perform self-learning:

[0017] Determine whether the driving range of the hybrid vehicle is greater than a preset mileage value;

[0018] Determine whether the number of times the hybrid vehicle is powered on and off exceeds a preset number;

[0019] Determine whether the minimum change in the clutch value is greater than a preset change.

[0020] Furthermore, the control method further includes:

[0021] If the judgment result is that the preset clutch self-learning trigger condition is not met, then the learning state signal is kept in the state of needing to perform self-learning.

[0022] Furthermore, after the clutch performs self-learning, the control method further includes:

[0023] The system stores the clutch slip point, maximum clutch disengagement point, and minimum clutch engagement point after the clutch has undergone self-learning.

[0024] Furthermore, after the clutch performs self-learning, the control method further includes:

[0025] The learning status signal of the clutch is modified so that self-learning is not required.

[0026] Furthermore, determining whether the clutch needs to undergo self-learning based on the clutch's learning state signal includes:

[0027] The learning status signal of the clutch stored in the memory of the hybrid vehicle is read, wherein the memory storing the learning status signal is a read-only memory.

[0028] Furthermore, the hybrid vehicle being in other states that cause the engine to start includes at least the following: the hybrid vehicle being in neutral and the engine being running.

[0029] This invention also provides a clutch self-learning control device for use in hybrid vehicles, the control device comprising:

[0030] A status signal determination unit is used to determine whether the clutch needs to perform self-learning based on the clutch's learning status signal;

[0031] The first self-learning judgment unit is used to determine whether the hybrid vehicle meets the preset clutch self-learning trigger condition if the judgment result of the state signal judgment unit is that self-learning is required. The preset clutch self-learning trigger condition is set on the basis that the engine has been started.

[0032] The second self-learning judgment unit is used to further determine whether the clutch needs to perform self-learning based on preset relearning conditions if the judgment result of the first self-learning judgment unit is that self-learning is not required. If the judgment result of the second self-learning judgment unit is that self-learning is required, the first self-learning judgment unit performs the action of judging whether the hybrid vehicle meets the preset clutch self-learning triggering conditions.

[0033] The self-learning control unit is used to control the clutch to perform self-learning if the judgment result of the first self-learning judgment unit is that the preset clutch self-learning trigger condition is met.

[0034] The power control unit is used to control the hybrid vehicle to enter the pure electric control mode after the clutch has completed self-learning.

[0035] This invention also provides a hybrid vehicle that executes the clutch self-learning control method described in any of the above embodiments.

[0036] This invention discloses a clutch self-learning control method, device, and hybrid vehicle. The control method includes: determining whether the clutch needs to perform self-learning based on the clutch's learning state signal; if self-learning is required, determining whether the hybrid vehicle meets preset clutch self-learning trigger conditions; if self-learning is not required, further determining whether the clutch needs to perform self-learning based on preset relearning conditions, and performing an action to determine whether the hybrid vehicle meets the preset clutch self-learning trigger conditions when the determination result is that self-learning is required; if the determination result is that the preset clutch self-learning trigger conditions are met, then performing clutch self-learning; after the clutch completes self-learning, controlling the hybrid vehicle to enter a pure electric control mode. This application solves the technical problem of frequent engine starts caused by the need for engine start during the clutch self-learning process in the prior art by setting the clutch self-learning trigger conditions on the premise that the engine has already started, thus achieving the technical effects of reducing engine start frequency, increasing driving comfort, reducing fuel consumption, and enhancing vehicle reliability. Attached Figure Description

[0037] Figure 1 This is a flowchart of a clutch self-learning control method provided in an embodiment of the present invention;

[0038] Figure 2 This is a flowchart of another clutch self-learning control method provided in an embodiment of the present invention;

[0039] Figure 3 This is a flowchart of another clutch self-learning control method provided in an embodiment of the present invention;

[0040] Figure 4 This is a structural diagram of a clutch self-learning control device provided in an embodiment of the present invention. Detailed Implementation

[0041] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0042] It should be noted that the terms "first," "second," etc., in the specification, claims, and drawings of this invention are used to distinguish different objects, not to limit a specific order. The various embodiments of this invention described below can be performed individually or in combination with each other; the embodiments of this invention do not impose specific limitations in this regard.

[0043] Precise clutch control is a prerequisite for ensuring smooth gear shifting and mode switching. The clutch control process is mainly based on the maximum clutch disengagement position, the minimum clutch engagement position, and the clutch engagement slip point position, where the clutch engagement slip point is the position where the clutch driving plate and driven plate just make contact. However, due to factors such as temperature and wear, the positions of these three points on the clutch will change. If the positions of these three points are not updated, it may cause problems such as gear shifting failure and poor vehicle smoothness. Therefore, the clutch control strategy develops a self-learning function for these three points, updating them according to the external environment and usage time.

[0044] The current principle for learning the clutch slip point is to detect the rotational speed of the clutch driven plate. The process involves first starting the engine, which is then fixedly connected to the clutch driving plate, maintaining idle speed with the engine. The clutch actuator controls the driven plate to move closer to the engine driving plate. When rotational speed is detected in the driven plate, the clutch is determined to be at the slip point. This learning process requires starting the engine. Therefore, to reduce the frequency of engine starts and the need for manual clutch activation, it is considered to complete the clutch self-learning while the engine is running.

[0045] Figure 1This is a flowchart of a clutch self-learning control method provided by an embodiment of the present invention. This clutch self-learning control method is applied to hybrid vehicles and specifically includes the following steps:

[0046] S101 determines whether the clutch needs to perform self-learning based on the clutch's learning status signal.

[0047] Optionally, S101, determining whether the clutch needs to perform self-learning based on the clutch learning status signal includes: reading the clutch learning status signal stored in the memory of the hybrid vehicle, wherein the memory storing the learning status signal is a read-only memory.

[0048] Specifically, the clutch learning status signal is generally stored in the hybrid vehicle's memory. When the hybrid vehicle is powered on, the clutch learning status signal is first read from the memory to determine whether the clutch needs to perform self-learning. The learning status signal is generally stored as 0 or 1. When the learning status signal is 1, it indicates that clutch self-learning is required, and step S102 is executed directly to start judging the trigger conditions for clutch self-learning. When the learning status signal is 0, it indicates that clutch self-learning is not required, and further reading of mileage, number of power-on / off cycles, and clutch minimum point is required, i.e., step S103 is executed.

[0049] S102, if self-learning is required, determine whether the hybrid vehicle meets the preset clutch self-learning trigger condition, wherein the preset clutch self-learning trigger condition is set on the premise that the engine has been started.

[0050] Specifically, when the learning status signal is 1, it indicates that clutch self-learning is required. At this time, it is necessary to determine whether the hybrid vehicle meets the preset clutch self-learning trigger conditions. In order to reduce the frequency of engine starting, the preset clutch self-learning trigger conditions need to be set on the basis that the engine has already started, such as when the vehicle key Start starts the engine or the vehicle is in parking power generation mode.

[0051] S103, if self-learning is not required, then further determine whether the clutch needs to perform self-learning based on the preset relearning conditions, and when the determination result is that self-learning is required, execute the action of determining whether the hybrid vehicle meets the preset clutch self-learning trigger conditions.

[0052] Specifically, when the learning status signal is 0, it indicates that clutch self-learning is not required. At this time, the driving mileage, number of power-on / off cycles, and clutch minimum point are read. Based on these parameters, a preset relearning condition is used to determine whether clutch self-learning is necessary. If the determination is that self-learning is required, it is necessary to determine whether the clutch meets the self-learning trigger condition, i.e., step S102 is executed. If the determination is that self-learning is not required, the learning status signal remains at 0.

[0053] S104. If the judgment result is that the preset clutch self-learning trigger condition is met, then clutch self-learning is performed.

[0054] Specifically, when the preset clutch self-learning trigger condition is met, the clutch is controlled to perform the self-learning action. After the self-learning is completed, the clutch stores the three points after self-learning, and then updates the clutch learning status signal to 0 to avoid triggering clutch self-learning in the next driving cycle.

[0055] S105, after the clutch completes self-learning, controls the hybrid vehicle to enter pure electric control mode.

[0056] Specifically, vehicle control modes are generally divided into pure electric control mode, engine control mode, and hybrid control mode. Pure electric control mode refers to the electric motor driving the vehicle alone, engine control mode refers to the engine driving the vehicle alone, and hybrid control mode refers to both driving the vehicle together. In the clutch self-learning control method provided in this embodiment of the invention, to reduce the frequency of engine starts, the hybrid vehicle is controlled to enter pure electric control mode only after the clutch has completed self-learning, allowing the vehicle to begin driving.

[0057] This application solves the technical problem of frequent engine starts caused by the need for engine start during the clutch self-learning process in the prior art by setting the trigger condition for clutch self-learning after the engine has already started. This achieves the technical effects of reducing engine start frequency, increasing driving comfort, reducing fuel consumption, and enhancing vehicle reliability.

[0058] Based on the above technical solutions, Figure 2 This is a flowchart of another clutch self-learning control method provided in an embodiment of the present invention, such as... Figure 2 As shown, S102, determining whether the hybrid vehicle meets the preset clutch self-learning trigger conditions specifically includes:

[0059] S201, determine whether the hybrid vehicle meets one of the following preset clutch self-learning trigger conditions: the hybrid vehicle starts the engine with the vehicle key; the hybrid vehicle is in the parking generator mode; the hybrid vehicle is in other states that would cause the engine to start.

[0060] Specifically, to reduce the frequency of engine starts, clutch self-learning is set to occur even when the engine is already running. Therefore, preset clutch self-learning trigger conditions can be set as follows: the hybrid vehicle starts the engine using the vehicle key; or the hybrid vehicle is in parking generator mode; or the hybrid vehicle is in another state that would cause the engine to start. When one of these three trigger conditions is met, the clutch self-learning action is executed. Optionally, other states that would cause the engine to start include at least: the hybrid vehicle is in neutral and the engine is running.

[0061] Optionally, other states that cause the engine to start in a hybrid vehicle include: when in neutral, the brake cylinder pressure is low, or when in neutral, the battery voltage is low (high voltage fault).

[0062] Specifically, when the hybrid vehicle is in neutral and the brake cylinder pressure is low, or when the battery voltage is low (high voltage fault) in neutral, in order to reduce the frequency of engine starts, after the clutch completes the self-learning process, it is necessary to wait for the hybrid vehicle's brake cylinder to be fully inflated or the battery to be fully charged before stopping the engine and entering the pure electric control mode. This will not be elaborated further here.

[0063] Based on the above technical solutions, such as Figure 2 As shown, S103, determining whether the clutch needs to undergo self-learning based on preset relearning conditions specifically includes:

[0064] S202, determine whether the clutch meets one of the following preset relearning conditions. If it does, the clutch needs to perform self-learning: determine whether the hybrid vehicle's driving mileage is greater than the preset mileage value; determine whether the hybrid vehicle's power-on and power-off counts are greater than the preset counts; determine whether the minimum value change of the clutch is greater than the preset change amount.

[0065] Specifically, the preset relearning conditions are used to determine whether the clutch needs to relearn itself. First, the hybrid vehicle's mileage, number of power-on / off cycles, and clutch minimum engagement point are read. Then, the following judgment processes are performed sequentially: whether the mileage exceeds a preset mileage value, whether the number of power-on / off cycles exceeds a preset number, and whether the clutch minimum engagement point change exceeds a preset change amount. The clutch minimum engagement point change amount is obtained by subtracting the minimum engagement point position stored from the previous clutch self-learning. If any one of the above three judgment processes yields a yes result, it indicates that the clutch needs to relearn itself; only if all three judgment processes yield no results does the clutch not need to relearn itself, and the learning status signal remains at 0.

[0066] Based on the above technical solutions, Figure 3 This is a flowchart of another clutch self-learning control method provided in an embodiment of the present invention, such as... Figure 3 As shown, the clutch self-learning control method also includes:

[0067] S301, if the judgment result is that the preset clutch self-learning trigger condition is not met, then the learning state signal is kept as if self-learning is required.

[0068] Specifically, if the judgment result is that the preset clutch self-learning trigger condition is not met, but the previously saved learning state signal is 1, that is, the self-learning state needs to be performed, then the saved learning state signal will continue to be kept in the state of needing to perform self-learning, that is, the learning state signal will be kept at 1, and the clutch self-learning will be performed when the preset clutch self-learning trigger condition is met.

[0069] Based on the above technical solutions, such as Figure 3 As shown, in S104, after the clutch performs self-learning, the clutch self-learning control method further includes:

[0070] S302 stores the clutch slip point, maximum clutch disengagement point, and minimum clutch engagement point after the clutch has undergone self-learning.

[0071] Specifically, the clutch self-learning process mainly involves finding and storing the clutch's maximum disengagement position (i.e., the maximum disengagement point), minimum engagement position (i.e., the minimum engagement point), and engagement slip point position (i.e., the clutch slip point). The maximum disengagement position refers to the position where the clutch's driving and driven plates are completely separated; the minimum engagement position refers to the position where the clutch's driving and driven plates are completely engaged; and the engagement slip point refers to the position where the clutch's driving and driven plates just begin to engage. After the clutch completes self-learning, it stores these three points and then updates the clutch's learning status signal to 0 to prevent the clutch from triggering self-learning in the next driving cycle.

[0072] Optionally, such as Figure 3 As shown, after the clutch performs self-learning in S104, the clutch self-learning control method further includes: S303, modifying the clutch learning status signal to indicate that self-learning is not required.

[0073] Specifically, after the clutch completes self-learning, the clutch learning status signal needs to be updated to 0 to prevent the clutch self-learning from being triggered in the next driving cycle.

[0074] Figure 4 This is a structural diagram of a clutch self-learning control device provided in an embodiment of the present invention. Figure 4 As shown, this clutch self-learning control device is applied to hybrid vehicles and specifically includes:

[0075] The status signal judgment unit 41 is used to determine whether the clutch needs to perform self-learning based on the clutch's learning status signal.

[0076] The first self-learning judgment unit 42 is used to determine whether the hybrid vehicle meets the preset clutch self-learning trigger condition if the judgment result of the state signal judgment unit 41 is that self-learning is required. The preset clutch self-learning trigger condition is set on the basis that the engine has been started.

[0077] The second self-learning judgment unit 43 is used to further judge whether the clutch needs to perform self-learning based on the preset relearning conditions if the judgment result of the first self-learning judgment unit 42 is that self-learning is not required. If the judgment result of the second self-learning judgment unit 43 is that self-learning is required, the first self-learning judgment unit 42 performs the action of judging whether the hybrid vehicle meets the preset clutch self-learning triggering conditions.

[0078] The self-learning control unit 44 is used to control the clutch to perform self-learning if the judgment result of the first self-learning judgment unit 42 is that the preset clutch self-learning trigger condition is met.

[0079] The power control unit 45 is used to control the hybrid vehicle to enter the pure electric control mode after the clutch has completed self-learning.

[0080] Optionally, the first self-learning judgment unit 42 is specifically used for:

[0081] Determine whether the hybrid vehicle meets one of the following preset clutch self-learning trigger conditions:

[0082] Hybrid vehicles can start their engines using a vehicle key;

[0083] The hybrid vehicle is in parking power generation mode;

[0084] The hybrid vehicle is in a state that would cause the engine to start.

[0085] Optionally, the second self-learning judgment unit 43 is specifically used for:

[0086] Determine if the clutch meets one of the following preset relearning conditions. If it does, the clutch needs to perform self-learning:

[0087] Determine whether the driving range of the hybrid vehicle exceeds the preset mileage value;

[0088] Determine whether the number of times the hybrid vehicle is powered on and off exceeds the preset number;

[0089] Determine whether the minimum change in clutch value is greater than the preset change value.

[0090] Optionally, the control device further includes:

[0091] The status signal modification unit is used to maintain the learning status signal as a self-learning state if the judgment result of the first self-learning judgment unit 42 is that the preset clutch self-learning trigger condition is not met.

[0092] Optionally, after the self-learning control unit 44 controls the clutch to perform self-learning, the control device further includes:

[0093] The memory is used to store the clutch slip point, the maximum clutch disengagement point, and the minimum clutch engagement point after the clutch has undergone self-learning.

[0094] Optionally, after the self-learning control unit 44 controls the clutch to perform self-learning, the status signal modification unit is also used for:

[0095] Modify the clutch learning status signal so that self-learning is not required.

[0096] Optionally, the status signal determination unit 41 is specifically used for:

[0097] Read the clutch learning status signal stored in the memory of the hybrid vehicle, wherein the memory storing the learning status signal is a read-only memory.

[0098] The device provided in this embodiment of the invention has the same implementation principle and technical effect as the aforementioned method embodiment. For the sake of brevity, any parts not mentioned in the system embodiment can be referred to the corresponding content in the aforementioned method embodiment.

[0099] This invention also provides a hybrid vehicle that executes the clutch self-learning control method in any of the above embodiments.

[0100] The hybrid vehicle provided in this embodiment of the invention executes the clutch self-learning control method in the above embodiments. Therefore, the hybrid vehicle provided in this embodiment of the invention also has the beneficial effects described in the above embodiments, which will not be repeated here.

[0101] In the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0102] Finally, it should be noted that the above are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A clutch self-learning control method, characterized in that, Applied to hybrid vehicles, the control method includes: Determine whether the clutch needs to perform self-learning based on the clutch's learning status signal; If self-learning is required, it is determined whether the hybrid vehicle meets the preset clutch self-learning trigger condition, wherein the preset clutch self-learning trigger condition is set on the premise that the engine has been started. If self-learning is not required, then the clutch is further judged based on the preset relearning conditions to determine whether self-learning is required. If the judgment result is that self-learning is required, the action of judging whether the hybrid vehicle meets the preset clutch self-learning trigger conditions is executed. If the judgment result is that the preset clutch self-learning trigger condition is met, then clutch self-learning is performed; and after the self-learning is completed, the learning status signal of the clutch is modified to indicate that self-learning is not required, so as to avoid triggering clutch self-learning in the next driving cycle. After the clutch completes its self-learning process, the hybrid vehicle is controlled to enter pure electric control mode.

2. The clutch self-learning control method according to claim 1, characterized in that, Determining whether a hybrid vehicle meets the preset clutch self-learning trigger conditions includes: Determine whether the hybrid vehicle meets one of the following preset clutch self-learning trigger conditions: The hybrid vehicle starts its engine using a vehicle key; The hybrid vehicle is in parking power generation mode; The hybrid vehicle is in a state that would otherwise cause the engine to start.

3. The clutch self-learning control method according to claim 1, characterized in that, Determining whether the clutch needs to undergo self-learning based on preset relearning conditions includes: Determine whether the clutch meets one of the following preset relearning conditions. If it does, the clutch needs to perform self-learning: Determine whether the driving range of the hybrid vehicle is greater than a preset mileage value; Determine whether the number of times the hybrid vehicle is powered on and off exceeds a preset number; Determine whether the minimum change in the clutch value is greater than a preset change.

4. The clutch self-learning control method according to claim 1, characterized in that, The control method further includes: If the judgment result is that the preset clutch self-learning trigger condition is not met, then the learning state signal is kept in the state of needing to perform self-learning.

5. The clutch self-learning control method according to claim 1, characterized in that, After the clutch performs self-learning, the control method further includes: The system stores the clutch slip point, maximum clutch disengagement point, and minimum clutch engagement point after the clutch has undergone self-learning.

6. The clutch self-learning control method according to claim 1, characterized in that, Determining whether the clutch needs to perform self-learning based on the clutch's learning status signal includes: The learning status signal of the clutch stored in the memory of the hybrid vehicle is read, wherein the memory storing the learning status signal is a read-only memory.

7. The clutch self-learning control method according to claim 1, characterized in that, The hybrid vehicle being in other states that would cause the engine to start includes at least the following: the hybrid vehicle being in neutral and the engine being running.

8. A clutch self-learning control device, characterized in that, The control device, applied to hybrid vehicles, includes: A status signal determination unit is used to determine whether the clutch needs to perform self-learning based on the clutch's learning status signal; The first self-learning judgment unit is used to determine whether the hybrid vehicle meets the preset clutch self-learning trigger condition if the judgment result of the state signal judgment unit is that self-learning is required. The preset clutch self-learning trigger condition is set on the basis that the engine has been started. The second self-learning judgment unit is used to further determine whether the clutch needs to perform self-learning based on preset relearning conditions if the judgment result of the first self-learning judgment unit is that self-learning is not required. If the judgment result of the second self-learning judgment unit is that self-learning is required, the first self-learning judgment unit performs the action of judging whether the hybrid vehicle meets the preset clutch self-learning triggering conditions. The self-learning control unit is used to control the clutch to perform self-learning if the judgment result of the first self-learning judgment unit is that the preset clutch self-learning trigger condition is met; and after the self-learning is completed, modify the learning status signal of the clutch to indicate that self-learning is not required, so as to avoid triggering clutch self-learning in the next driving cycle. The power control unit is used to control the hybrid vehicle to enter the pure electric control mode after the clutch has completed self-learning.

9. A hybrid vehicle, characterized in that, The hybrid vehicle performs the clutch self-learning control method according to any one of claims 1-7.

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