Method for deactivating shut-off function of engine of engine-driven two-wheeled vehicle

Abstract

A method of deactivating a turn-off function of an engine of an engine-driven two-wheeled vehicle. The invention relates to a method of deactivating a shut-off function of an engine (10) of an engine-driven two-wheeled vehicle (1), said vehicle comprising an electronic control unit (11) comprising a tilt sensor (111) configured to measure a lateral tilt angle (theta) of the vehicle (1) and to compare the calculated tilt angle with a second tilt threshold (theta 2), and issuing a signal to stop the engine (10) if the calculated inclination angle is greater than a second inclination threshold (theta1), the method comprising the steps of: activating the electronic control unit (11) by an action of the user; receiving a speed of the vehicle (1); if the received speed is zero, calculating a tilt angle of the vehicle; if the calculated inclination angle is greater than the first inclination threshold, the electronic control unit deactivates a turn-off function of the engine (10).

Description

Technical Field

[0001] This invention relates to the field of engine-driven two-wheeled vehicles, and more particularly, to commands for shutting off the engine based on the lateral tilt of the vehicle. Background Technology

[0002] To improve driver safety, many engine-driven two-wheeled vehicles are now equipped with systems that can directly influence vehicle operation without driver intervention once an emergency is detected.

[0003] In a known manner, manufacturers of engine-driven two-wheeled vehicles include tilt sensors in these vehicles, which specifically measure the lateral tilt of the two-wheeled vehicle. These sensors are configured to have a maximum tilt threshold; exceeding this threshold indicates that the vehicle is tipping over, triggering the engine to stop and thus ensuring driver safety.

[0004] For example, if the threshold is 60° relative to the vertical direction defined by Earth's gravity, and the vehicle's effective tilt angle exceeds 60°, then the vehicle is considered to be falling and the engine stops.

[0005] If the vehicle tilts beyond the threshold when the user starts the vehicle, the device also prevents the engine from starting.

[0006] The first generation of mechanical tilt sensors were attached to the vehicle's chassis. These sensors contained a weight (e.g., a ball) that moved according to the vehicle's tilt angle and eventually closed electrical contacts when a given tilt angle was exceeded. Therefore, the inertia of these weights determined the sensor's sensitivity to vehicle tilt, and also, in addition, the accuracy of the angle measurement.

[0007] However, these sensors are bulky and have significant limitations in terms of attachment to the vehicle's chassis. For these reasons, a new generation of sensors has been used, consisting of an electronic control unit that includes a MEMS (Micro-Electro-Mechanical Systems) type accelerometer. This type of sensor is mounted directly near the engine.

[0008] However, there are significant limitations to the positioning of the accelerometer. Specifically, during maintenance or repair, the sensor can be removed from the vehicle, but it cannot be returned to its original calibration position. In this situation, the tilt angle measured by the sensor no longer corresponds to the actual tilt angle of the vehicle.

[0009] In such a situation, when the vehicle is in the proper position, the sensors may measure a tilt exceeding a threshold and thus trigger the engine to stop, which would pose a significant risk of an accident if the user is driving the vehicle.

[0010] Similarly, the sensors may not detect a significant tilt, causing the engine to run during the fall.

[0011] Physical error-proofing systems can be installed on various components to constrain sensor orientation, but they cannot completely guarantee the systematic reproduction of calibration positions. These error-proofing devices also do not prevent component positions from changing due to wear and tear on parts or engine vibration.

[0012] Therefore, a simple and effective solution is needed that can at least partially overcome these shortcomings. Summary of the Invention

[0013] Therefore, the present invention first relates to a method for disabling the engine cut-off function (or shutdown function) of an engine-driven two-wheeled vehicle, the vehicle including the engine, an electronic control unit, and a speed measurement module, the speed measurement module being configured to measure the vehicle's speed value, the electronic control unit including a tilt sensor configured to measure the vehicle's lateral tilt angle and a storage area including a first predetermined tilt angle threshold and a second predetermined tilt angle threshold, the first tilt angle threshold being less than the second tilt angle threshold, the electronic control unit being configured to compare a calculated tilt angle with the second predetermined tilt angle threshold, and if the calculated tilt angle is greater than the second predetermined tilt angle threshold, to implement the engine cut-off function by sending a stop signal to the engine, receiving the vehicle's speed, and triggering at least one timer to reach a predetermined value, the method comprising the following steps: - The electronic control unit is activated by the user's actions. - The vehicle speed, measured by the speed measurement module, is received by the electronic control unit. - If the received speed is zero, the vehicle's tilt angle is calculated using the electronic control unit. - If the calculated tilt angle is less than the first tilt threshold, the electronic control unit will not activate the engine shutdown function. If the calculated tilt angle is greater than the first threshold, the electronic control unit triggers the first time counter to continue for a predetermined time. - As long as the initial counter has not reached the predetermined time, the electronic control unit calculates the vehicle's tilt angle. - If the calculated tilt angle is greater than a first threshold and less than a second threshold when the first time counter reaches a predetermined time, the electronic control unit disables the engine shutdown function.

[0014] Lateral tilt is understood as the degree of inclination of the plane in which the vehicle extends relative to the plane formed by the ground. For example, a user's action might be to start the vehicle with a key.

[0015] The method according to the invention enables the detection of the difference between the tilt angle calculated by the vehicle's electronic control unit (ECU) and the expected tilt angle when the vehicle is stationary. When the calculated tilt angle stabilizes over time and is less than a first tilt angle threshold, it is considered correct relative to the expected position by the ECU, and the engine stop function is maintained. Conversely, if the calculated tilt angle is greater than the first threshold but remains less than a second threshold, thus not immediately triggering the engine stop function, the tilt angle calculation is considered incorrect, and the engine may subsequently be stopped to achieve an acceptable tilt angle for the vehicle. In this case, the ECU disables the engine stop function and sends a warning to the user, who can then use the vehicle without the engine stop function while waiting for the ECU to be repaired to calculate the tilt angle corresponding to the actual tilt angle of the vehicle.

[0016] Advantageously, if the tilt angle calculated after receiving the vehicle's zero speed is greater than a second tilt threshold, the method includes the following steps: triggering a second time counter for a second predetermined time; calculating the vehicle's tilt angle as long as the second time counter has not reached the second predetermined time; deactivating the engine shutdown function if the tilt angle calculated when the second time counter reaches the predetermined time is equal to the tilt angle calculated when the first time counter is triggered; and maintaining the engine shutdown function if the tilt angle calculated when the second time counter reaches the predetermined time is different from the tilt angle calculated when the first time counter is triggered. If the tilt angle calculated in a stationary state is greater than the second tilt threshold, this selection allows the electronic control unit to temporarily deactivate the engine stop function. Therefore, if the tilt angle calculation result stabilizes over time, an angle calculation error is detected, and the engine stop function remains deactivated. On the other hand, if the angle calculation result changes, this may indicate a vehicle problem, such as the vehicle falling over in a stationary state or leaving its parking position. In this case, from a safety perspective, it is preferable to reactivate the engine stop function.

[0017] Preferably, the tilt sensor is configured to determine the projection of Earth's gravity onto three axes, and the electronic control unit is configured to calculate the tilt angle based on these three projections determined by the tilt sensor. This type of sensor corresponds to the MEMS-type accelerometer used.

[0018] In a preferred embodiment, the electronic control unit is configured to receive the engine's revolutions per minute (RPM) of the vehicle, and the step of activating the electronic control unit is followed by the steps of: comparing the engine's RPM with a predetermined value by means of the electronic control unit; and interrupting the method if the engine's RPM is greater than the predetermined value. Then, when the engine is stopped, or if the engine is idling (e.g., if the user has started the engine but not engaged a gear ratio), the electronic control unit may trigger a check of the tilt angle calculation.

[0019] Advantageously, the engine speed per minute of the vehicle is calculated based on electrical signals from a crank-type sensor.

[0020] Preferably, the vehicle includes a stabilizing bracket, and an electronic control unit is configured to detect the deployment of the bracket, and the method includes the steps of: checking the deployment of the bracket after activating the electronic control unit; and interrupting the method if the deployment of the bracket is not detected. Deployment of the lateral or central bracket ensures that the vehicle is in a fixed stationary position with a fixed tilt angle.

[0021] In this embodiment, the first predetermined threshold advantageously corresponds to the sum of the vehicle's tilt angle on an ideally flat surface when the stabilizing bracket is deployed and the margin of error. The contribution of the tilt angle generated by the bracket varies depending on the nature and installation of the bracket. The margin of error allows for the accounting of, for example, bracket wear and uneven ground, which may result in small deviations relative to the ideal tilt angle corresponding to the bracket.

[0022] According to another aspect, the present invention also relates to a computer program product, characterized in that the computer program product includes a set of program code instructions, which, when executed by one or more processors, configure the one or more processors to perform the method as described.

[0023] According to another aspect, the present invention also relates to an electronic control unit for an engine-driven two-wheeled vehicle, the electronic control unit comprising: a tilt sensor configured to measure the lateral tilt of the vehicle; and a storage area including a first predetermined tilt threshold and a second tilt threshold, the electronic control unit being configured to connect to the vehicle's engine and a speed measurement module, and configured to: - Receives the vehicle's speed value measured by the speed measurement module. - Trigger at least one time counter to reach a predetermined value. - The vehicle's lateral tilt angle is calculated based on tilt measurements from the tilt sensor. - Compare the calculated tilt angle with the first tilt threshold and the second tilt threshold. - If the calculated tilt angle is greater than the second tilt threshold, then send a command to stop the engine. - If the calculated tilt angle is greater than the first tilt threshold, then the command to stop the engine is deactivated.

[0024] Advantageously, the tilt sensor of the electronic control unit, as described, is configured to determine the projection of Earth's gravity onto three axes, and the electronic control unit is configured to calculate the tilt angle based on these three projections determined by the tilt sensor.

[0025] According to another aspect, the present invention also relates to an engine-driven two-wheeled vehicle comprising an electronic control unit as described. Attached Figure Description

[0026] Other features and advantages of the invention will become more apparent from the following description. This specification is illustrative only and should be read with reference to the accompanying drawings, in which: [ Figure 1 ] Figure 1 A schematic illustration shows an engine-driven two-wheeled vehicle in which the method according to the invention is applied; [ Figure 2 ] Figure 2 An electronic control unit that implements the method is illustrated schematically; [ Figure 3 ] Figure 3 The lateral tilt of a vehicle relative to first and second tilt thresholds according to the method of the present invention is schematically illustrated. [ Figure 4 ] Figure 4 The sequence of steps according to the method of the present invention is illustrated schematically. Detailed Implementation

[0027] The method according to the invention is applied to an engine-driven two-wheeled vehicle 1.

[0028] Vehicle 1 like Figure 1 As shown, vehicle 1 includes engine 10, electronic control unit 11, bracket 12, speed measurement module 13 and communication link 14.

[0029] Engine 10 When vehicle 1 moves, engine 10 enables the generation of the torque required to drive the wheels of vehicle 1.

[0030] The engine 10 is connected to a mechanical gearbox (not shown) to change the gear ratio.

[0031] Engine 10 can operate without engaging any gear ratio of the mechanical gearbox, for example, when vehicle 1 is started.

[0032] Electronic control unit 11 like Figure 2 As shown, the electronic control unit 11 includes a tilt sensor 111 and a storage area 112.

[0033] The tilt sensor 111 is preferably a MEMS accelerometer configured to calculate the projection of Earth's gravity onto the three axes of a coordinate system.

[0034] The electronic control unit 11 is configured to calculate the lateral tilt angle of the vehicle 1 relative to the vertical direction of the earth based on three projections measured by the tilt sensor 111.

[0035] Storage area 112 is configured to store information. Specifically, storage area 112 includes two angles θ1 and θ2, which correspond to a first tilt threshold and a second tilt threshold, such as... Figure 3 As shown in the image.

[0036] The electronic control unit 11 is configured to compare the calculated tilt angle θ with a first tilt threshold θ1 and a second tilt threshold θ2.

[0037] The first tilt threshold θ1 corresponds to the expected tilt angle of vehicle 1 when it rests against the deployed support 12, and an error margin of several degrees is added to the expected tilt angle. This error margin allows for the accounting of changes in tilt angle, for example, due to uneven ground or variations in the support 12.

[0038] The second tilt threshold θ2 corresponds to the following angle: from this angle, the electronic control unit 11 considers the vehicle 1 to be falling.

[0039] The electronic control unit 11 is configured to implement the engine 10 stop function of the vehicle 1 if the calculated lateral tilt angle θ is greater than the second tilt threshold θ2.

[0040] Bracket 12 The bracket 12 allows the vehicle 1 to have additional support points to hold it in a stable position when deployed.

[0041] The bracket 12 is configured to send a signal to the electronic control unit 11 via the communication link 14, the signal indicating whether the bracket 12 is deployed.

[0042] In the example shown in the figure, support 12 is a lateral support. When it is deployed, a stationary vehicle 1 rests against it and is tilted relative to the vertical direction Z of the Earth, as shown. Figure 3 As shown in the image.

[0043] In another embodiment, the support 12 may be a central support. When deployed, a stationary vehicle 1 rests against it and remains upright relative to the vertical direction Z of the Earth.

[0044] Speed ​​measurement module 13 The speed measurement module 13 is configured to measure the speed of the vehicle 1.

[0045] For example, the speed measurement module 13 may have various types, such as a rotation counter on one of the wheels of vehicle 1.

[0046] Communication Link 14 Communication link 14 allows communication between electronic control unit 11 and engine 10, bracket 12 and speed measurement module 13.

[0047] Preferably, the communication link 14 is a wired communication link, such as a CAN type wired communication link.

[0048] Exemplary embodiments When the user of vehicle 1 activates vehicle 1, the method according to the present invention is implemented.

[0049] For example, activating vehicle 1 includes turning the key to vehicle 1 or pressing the start button.

[0050] As a result of the user activating vehicle 1, the electronic control unit 11 is activated in step E1.

[0051] After activating the electronic control unit 11, in step E2, the electronic control unit 11 receives the speed value of the vehicle 1 measured by the speed measurement module 13 via the communication link 14.

[0052] In step E3, the electronic control unit 11 checks whether the received speed value is zero. If the speed is not zero, the electronic control unit 11 detects that the vehicle 1 is moving and interrupts the method, while maintaining the engine 10 shutdown function based on the lateral tilt of the vehicle 1.

[0053] After activating the electronic control unit 11, in step E2*, the electronic control unit 11 receives the revolutions per minute value of the engine 10 via the communication link 14.

[0054] In step E3*, the electronic control unit 11 checks whether the engine 10's revolutions per minute (RPM) is less than a predetermined value. If it is greater, the electronic control unit 11 detects that the vehicle 1 is moving and interrupts the method, while maintaining the engine 10's shutdown function based on the vehicle 1's lateral tilt.

[0055] After activating the electronic control unit 11, in step E2**, the electronic control unit 11 receives an unfolding signal of the bracket 12 via the communication link 14, which indicates whether the bracket 12 has unfolded.

[0056] In step E3**, the electronic control unit 11 checks whether the bracket 12 is deployed. If it is not deployed, the electronic control unit 11 detects that the vehicle 1 is not in a balanced state and interrupts the method, and maintains the engine 10 shutdown function based on the lateral tilt of the vehicle 1.

[0057] The zero speed of vehicle 1, the revolutions per minute of engine 10, and the deployment of support 12 form the control conditions required by the method according to the invention.

[0058] Steps E2, E2*, and E2** can be executed simultaneously or in any order.

[0059] Steps E3, E3*, and E3** can be executed simultaneously or in any order.

[0060] In step E4, the electronic control unit 11 calculates the tilt angle θ of the vehicle 1 based on the projection of the Earth's gravity onto the three axes of the tilt sensor's coordinate system.

[0061] In step E5, the electronic control unit 11 compares the calculated tilt angle θ with the first tilt threshold θ1 and the second tilt threshold θ2.

[0062] If the tilt angle θ is less than the first tilt threshold θ1, the vehicle 1 is tilted at the same angle as when it is resting on the support 12. The vehicle 1 can also be upright if it is on the central support 12 or if a user is sitting on the vehicle 1. In step E6, the electronic control unit 11 does not trigger the engine 10 shutdown function based on the lateral tilt angle, and the method is repeated from step E1.

[0063] Therefore, this method is repeated until the user starts vehicle 1, in which case the control conditions will no longer be checked and the method will be interrupted without disabling the engine 10's stop function.

[0064] If the tilt angle θ is greater than the first tilt threshold θ1 and less than the second tilt threshold θ2, then in step E6*, the electronic control unit 11 triggers the first time counter to continue for a predetermined time.

[0065] In step E7*, the electronic control unit 11 iteratively calculates the tilt angle θ of the vehicle 1 and compares each calculation result with the previous one.

[0066] If, when the first time counter reaches a predetermined time, the tilt angle θ calculated by the electronic control unit 11 is equal to (or sufficiently close to) the tilt angle calculated in step E4, and is therefore less than the second tilt threshold θ2, then in step E8*, the electronic control unit 11 triggers the interruption of the engine 10 shutdown function based on the lateral tilt of the vehicle 1.

[0067] Specifically, under the control conditions of vehicle 1, if the calculated tilt angle θ is greater than the first tilt threshold θ1, it indicates an error in the calculation of that angle by the electronic control unit 11. Therefore, the engine 10 shutdown function based on the lateral tilt of vehicle 1 must be interrupted to prevent the engine 10 from stopping while vehicle 1 is moving, and the user is warned of the calculation error in step E9*.

[0068] If the tilt angle θ calculated by the electronic control unit 11 changes beyond the error margin relative to the tilt angle θ calculated in step E4 when the first time counter reaches the predetermined time, the electronic control unit 11 triggers the reinitialization of the method from step E1, because the change in tilt angle θ may indicate that the vehicle 1 is moving, while complying with the conditions of steps E2, E2* and E2**, for example, this may correspond to a fall in a stationary state.

[0069] If the tilt angle θ is greater than the first tilt threshold θ1 and greater than the second tilt threshold θ2, then in step E6**, the electronic control unit 11 triggers the second time counter to continue for a second predetermined time.

[0070] In step E7**, the electronic control unit 11 iteratively calculates the tilt angle θ of the vehicle 1 and compares each calculation result with the previous one.

[0071] If, when the second time counter reaches a predetermined time, the tilt angle θ calculated by the electronic control unit 11 is equal to (or sufficiently close to) the tilt angle θ calculated in step E4, then in step E8**, the electronic control unit 11 triggers the interruption of the engine 10 shutdown function based on the lateral tilt of the vehicle 1.

[0072] Specifically, under the control conditions of vehicle 1, if the calculated tilt angle θ remains constant and exceeds a second threshold within a predetermined time, it indicates an error in the calculation of this angle by the electronic control unit 11. Therefore, the engine 10 shutdown function based on the lateral tilt of vehicle 1 must be interrupted to prevent the engine 10 from stopping while vehicle 1 is moving, and the user is warned of the error in step E9**.

[0073] If the tilt angle θ calculated by the electronic control unit 11 changes beyond the error margin relative to the tilt angle θ calculated in step E4 when the second time counter reaches the predetermined time, the electronic control unit 11 triggers a re-initialization of the method from step E1, because the change in tilt angle θ may indicate that the vehicle 1 is moving while complying with the conditions of steps E2, E2* and E2**, for example, this may correspond to a fall in a stationary state.

[0074] Since the calculated tilt angle θ of vehicle 1 is greater than the second tilt threshold θ2, the electronic control unit 11 is configured to activate the engine stop function of engine 10. For this purpose, the tilt angle θ must be confirmed within a certain time. However, in the event of a problem in the tilt measurement, if the engine 10 of the stationary vehicle 1 is operating at low speed, it is desirable not to activate this function.

[0075] Therefore, the second predetermined time is less than the waiting time of the engine 10's stop function. Therefore, once the second time counter reaches the second predetermined time, the electronic control unit 11 can determine whether there is a tilt problem if the tilt angle θ is constant, or whether there is a stability problem of the vehicle 1 if the tilt angle θ changes.

[0076] In this case, it is preferable to activate the engine 10's stop function based on the tilt angle θ. This could happen if the stationary vehicle 1 is falling.

Claims

1. A method for disabling the shutdown function of an engine (10) of an engine-driven two-wheeled vehicle (1), the vehicle (1) including the engine (10), an electronic control unit (11) and a speed measurement module (14), the electronic control unit (11) including a tilt sensor (111) and a storage area (112), the electronic control unit (11) being configured to calculate a lateral tilt angle (θ) of the vehicle (1) based on a measurement performed by the tilt sensor (111), the storage area (112) including a first predetermined tilt threshold (θ1) and a second predetermined tilt threshold (θ2), the first tilt threshold (θ1) being less than the second tilt threshold (θ2), the electronic control unit (11) being configured to compare the calculated tilt angle (θ) with the second tilt threshold (θ2), and if the calculated tilt angle (θ) is greater than the second predetermined tilt threshold (θ2), to implement the engine shutdown function by sending a stop signal to the engine, receiving the speed of the vehicle (1), and triggering at least one time counter to reach a predetermined value, the method comprising the steps of: - The electronic control unit (11) is activated by the user's action (E1). - The speed of the vehicle (1) is received (E2) by means of the electronic control unit (11). - If the received speed is zero, the tilt angle (θ) of the vehicle (1) is calculated (E4) by means of the electronic control unit (11). - If the calculated tilt angle (θ) is less than the first tilt threshold (θ1), the electronic control unit (11) will not activate the engine (10) shutdown function. - If the calculated tilt angle (θ) is greater than the first tilt threshold (θ1), then the electronic control unit (11) triggers (E6*) the first time counter to continue for a predetermined time. - As long as the first time counter has not reached the predetermined time, the tilt angle (θ) of the vehicle (1) is calculated (E7*) by means of the electronic control unit (11). - If when the first time counter reaches the predetermined time, the calculated tilt angle (θ) is greater than the first tilt threshold (θ1) and less than the second tilt threshold (θ2), then the electronic control unit (11) disables (E8*) the shutdown function of the engine (10).

2. The method according to claim 1, wherein, If the tilt angle (θ) calculated after receiving the zero speed of the vehicle (1) is greater than the second tilt threshold (θ2), the method includes the following steps: triggering a second time counter (E6**) for a second predetermined time, the second predetermined time being shorter than the first predetermined time; calculating (E7**) the tilt angle (θ) of the vehicle (1) as long as the second time counter has not reached the second predetermined time; if the tilt angle (θ) calculated when the second time counter reaches the predetermined time is equal to the tilt angle calculated when the first time counter is triggered, then disabling (E8**) the shutdown function of the engine (10); and if the tilt angle (θ) calculated when the second time counter reaches the predetermined time is different from the tilt angle calculated when the first time counter is triggered, then maintaining the shutdown function of the engine (10).

3. The method according to any one of the preceding claims, wherein, The tilt sensor (111) is configured to determine the projection of Earth's gravity onto the three axes of the coordinate system, and the electronic control unit (11) is configured to calculate the tilt angle (θ) based on the three projections determined by the tilt sensor (111).

4. The method according to any one of the preceding claims, wherein, The electronic control unit (11) is configured to receive the revolutions per minute of the engine (10) of the vehicle (1), and wherein activating the electronic control unit (11) is followed by the following steps: by means of the electronic control unit (11) comparing the revolutions per minute of the engine (10) with a predetermined value (E3*); and if the revolutions per minute of the engine (10) is greater than the predetermined value, then interrupting the method.

5. The method according to any one of the preceding claims, wherein, The vehicle (1) includes a stabilizing bracket (12), and the electronic control unit (11) is configured to detect the deployment of the bracket (12), the method comprising the steps of: checking (E3**) the deployment of the bracket (12) after the step of activating the electronic control unit (11); and interrupting the method if the deployment of the bracket (12) is not detected.

6. The method according to the preceding claim, wherein, The first tilt threshold (θ1) corresponds to the sum of the tilt of the vehicle (1) on an ideally flat ground and the error margin when the support (12) is deployed.

7. A computer program product, characterized in that, The computer program product includes a set of program code instructions that, when executed by one or more processors, configure the one or more processors to perform the method according to any one of claims 1 to 6.

8. An electronic control unit (11) for an engine-driven two-wheeled vehicle (1), the electronic control unit (11) comprising: A tilt sensor (111) configured to measure the lateral tilt angle (θ) of the vehicle (1); and a storage area (112) including a first predetermined tilt threshold (θ1) and a second tilt threshold (θ2), the electronic control unit (11) being configured to connect to the engine (10) of the vehicle (1) and a speed measurement module (14), and configured to: - Receive the speed value of the vehicle (1) measured by the speed measurement module (14), - Trigger at least one time counter to reach a predetermined value. - Compare the calculated tilt angle (θ) with the first tilt threshold (θ1) and the second tilt threshold (θ2). - If the calculated tilt angle (θ) is greater than the second tilt threshold (θ2), then a command to stop the engine is sent. - If the calculated tilt angle (θ) is greater than the first tilt threshold (θ1), then the command to stop the engine (10) is deactivated.

9. The electronic control unit (11) according to the preceding claim, wherein, The tilt sensor (111) is configured to determine the projection of Earth's gravity on three axes, and the electronic control unit (11) is configured to calculate the tilt angle (θ) of the vehicle (1) based on the three projections determined by the tilt sensor (111).

10. An engine-driven two-wheeled vehicle (1) comprising an electronic control unit (11) according to any one of claims 8 and 9.

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