Motorcycle and method for the emergency switch-off of a charging process for an electrically operable motorcycle

Abstract

The invention relates to a motorcycle (1) and to a method for the emergency switch-off of a charging process for an electrically operable motorcycle (1), wherein during the process of charging the electrically operable motorcycle (1), at least one positional parameter of the motorcycle (1) is monitored by a sensor device (4) of the motorcycle (1), wherein if a predefined positional parameter threshold value of the positional parameter of the charging process is exceeded, switch-off is effected by controlling a charging device (1).

Description

[0001] Motorcycle and method for emergency shutdown of a charging process for an electrically operated motorcycle

[0002] The invention relates to a method for emergency shutdown of a charging process for an electrically operated motorcycle. Furthermore, the invention relates to a motorcycle configured to carry out the method.

[0003] To achieve higher charging speeds for electric motorcycles, they are being charged with increasingly high power levels using direct current (DC) or alternating current (AC). Very high currents flow, especially during DC charging. Therefore, safety precautions must be taken for DC and / or AC charging to ensure that users are not exposed to danger.

[0004] A motorcycle is typically charged on its side stands and two wheels, or on a central kickstand. Unlike a passenger car, however, a motorcycle can tip over, causing damage to the motorcycle's charging system or the charging infrastructure, thus posing a hazard to the user.

[0005] DE 10 2015226 318 A1 discloses a method for charging a

[0006] Traction energy storage of an at least partially electrically powered vehicle is known. The method detects an interruption in a charging process. Furthermore, a parameter representing the reason for the interruption is determined, and depending on the determined parameter, one or more of the following measures are implemented: the charging process is continued in the same or modified manner; a specific signal is issued.

[0007] From DE 11 2018 006 835 T5 a device and a method for anomaly detection of a secondary battery are known.

[0008] The object of the present invention is to improve safety during the charging process for an electrically powered motorcycle. This object is achieved according to the invention by the independent patent claims. Advantageous embodiments of the invention are the subject of the dependent patent claims and the description.

[0009] One aspect of the invention relates to a method for emergency shutdown of a charging process for an electrically operated motorcycle, wherein during the charging process of the electrically operated motorcycle at least one position parameter of the motorcycle is monitored by a sensor device of the motorcycle, wherein if a predetermined position parameter threshold value of the position parameter is exceeded, the charging process is switched off by controlling a charging device internal to the motorcycle.

[0010] In other words, a charging process for the motorcycle can be aborted if a sensor device detects that the motorcycle has tipped over or is moving. To this end, the sensor device can determine a position parameter, such as an inclination and / or acceleration, and this position parameter can be compared with a predefined position parameter threshold. The position parameter threshold can be a limit value that should not be exceeded during the charging process. For example, the inclination of the motorcycle can be monitored during the charging process, and the charging process is aborted if the inclination is too high, thus indicating that the motorcycle has tipped over.

[0011] To abort the charging process, a charging device on the motorcycle and / or a charging infrastructure can be activated to abort the charging process. The charging device can, for example, comprise a traction battery on the motorcycle and control electronics that can interrupt the power supply to the traction battery. Alternatively or additionally, the charging device can comprise the charging infrastructure, for example, a charging station, which subsequently receives a shutdown request and stops the power supply, particularly in the event of damage to a charging plug of a cable permanently installed in the charging infrastructure, thus providing additional protection.

[0012] The invention offers the advantage that current flow to potentially damaged components such as plugs or cables can be deactivated, thus ensuring a safe condition in the event of a fall or unplanned movement of the motorcycle. Overall, this improves the safety of the charging process of the electrically powered motorcycle. Further advantages arise from the embodiments described below.

[0013] One embodiment provides for an inclination sensor of the sensor device to monitor the motorcycle's inclination as a position parameter. This means that the motorcycle's tilt can be monitored, and if this tilt exceeds a predefined position parameter threshold, the charging process can be interrupted or aborted.

[0014] Preferably, an inclination of 15° is specified as the position parameter threshold. This means that if the inclination exceeds 15°, the charging process is aborted.

[0015] Another embodiment provides for a rotation rate sensor of the sensor device to monitor the rotation rate around a longitudinal axis of the motorcycle. The rotation rate sensor can be an acceleration sensor that can detect a rotational movement around a longitudinal axis. This means that, for example, a sideways tipping of the motorcycle can be detected by the rotation rate sensor.

[0016] Preferably, a rotation rate of 1 rad / s is specified as the position parameter threshold. This means that if the rotation rate around the motorcycle's longitudinal axis is greater than 1 rad / s, the charging process can be aborted.

[0017] Another embodiment provides for the charging process for the electrically powered motorcycle to be carried out using direct current (DC) charging. DC charging has the advantage that the motorcycle's traction battery can be charged more quickly, thus shortening the charging process. Alternatively, however, the method can also be used for all charging processes above 60 volts, especially with alternating current (AC) charging.

[0018] Another embodiment provides for the use of sensors from a motorcycle's driver assistance system as the sensor device. The motorcycle's driver assistance system can, for example, include sensors for ABS, E-Call in the event of a crash, angle sensors, and / or acceleration sensors, which can be used as the sensor device for determining the position parameter. This offers the advantage that no separate sensors need to be installed in the motorcycle to detect movement or tipping of the motorcycle during the charging process. Consequently, costs can be saved.

[0019] A further embodiment provides that a control unit of the motorcycle monitors the position parameter for exceeding the predefined limit value. If the predefined limit value is exceeded, the control unit generates a control signal to shut down the charging process in an emergency and sends it to the charging device on the motorcycle. In other words, the method can be controlled by a control unit of the motorcycle by receiving and evaluating the measurement data from the sensor device. If it is determined that the measured position parameter is above the position parameter threshold, the control unit can trigger the charging device on the motorcycle by means of a control signal to terminate the charging process.

[0020] Another embodiment provides for bidirectional charging. In other words, in addition to unidirectional charging, bidirectional charging can also be performed, in which either a traction battery of the motorcycle is charged or energy can be drawn from the traction battery. In both cases, an emergency shutdown can be performed if it is detected that the motorcycle is moving or falls over.

[0021] A further aspect of the invention relates to a motorcycle comprising a sensor device, a control unit, and a charging device. The sensor device is designed to determine a position parameter of the motorcycle during a charging process. The control unit is designed to compare the determined position parameter with a predefined position parameter threshold value and, if the predefined position parameter threshold value is exceeded, to generate a control signal and send it to the charging device. The charging device is designed to deactivate the charging process upon receipt of the generated control signal. The motorcycle can preferably be combined with the same embodiments as those already described for the method.

[0022] Further features of the invention emerge from the claims, the figures, and the description of the figures. The features and combinations of features mentioned above in the description, as well as the features and combinations of features mentioned below in the description of the figures and / or shown alone in the figures, can be used not only in the respective specified combination, but also in other combinations or on their own.

[0023] The invention will now be explained in more detail using a preferred embodiment and with reference to the drawings. They show:

[0024] Fig. 1 shows a schematically illustrated motorcycle according to an exemplary

[0025] embodiment;

[0026] Fig. 2 is a schematic process diagram according to an exemplary

[0027] Embodiment.

[0028] Figure 1 shows a schematic representation of a motorcycle 1. The motorcycle 1 can be designed as an electrically powered motorcycle 1 and include a charging device 2. The charging device 2 can, for example, have a traction battery, charging electronics, and a socket for receiving a charging plug 3. The charging device 2 can preferably be designed for AC charging or DC charging and / or bidirectional charging.

[0029] Since the motorcycle 1 may tip over during the charging process, thus causing damage to the charging device 2 and / or a charging device, for example, the charging plug 3, it can be provided that, to increase safety, a position parameter of the motorcycle is monitored and an emergency shutdown is performed if a tipping of the motorcycle 1 is detected. For this purpose, the motorcycle 1 can comprise a sensor device 4, which preferably uses sensors of a driver assistance system of the motorcycle 1. Furthermore, a control unit 5 can be provided, which provides for an evaluation of sensor data and a generation of control signals.

[0030] In particular, the sensor device 4 can be designed to monitor a position parameter of the motorcycle 1. For example, the control device 4 can have an inclination sensor that monitors an inclination a of the motorcycle as a position parameter, in particular the inclination a about a longitudinal axis of the motorcycle 1. Alternatively or additionally, the sensor device 4 can have a yaw rate sensor or acceleration sensor, by means of which a temporal change in the inclination a can be monitored.

[0031] The sensor data from the sensor device 4 can then be compared, for example, by the control unit 5 with respective predefined position parameter threshold values ​​in order to determine a movement of the motorcycle 1. For example, a position parameter threshold value of 15° can be specified for an inclination a, which should not be exceeded during charging, and a position parameter threshold value of 1 rad / s can be specified for a rotation rate. If it is determined that the inclination or the rotation rate is above this position parameter threshold value, the control unit 5 can generate a control signal by means of which the charging device 2 can be controlled to switch off the charging process. This prevents current flow to potentially damaged components, such as the charging plug 3, a cable, or the charging device 2, thereby increasing safety.

[0032] Figure 2 shows a schematic process diagram for emergency shutdown of a charging process for the electrically powered motorcycle 1. In a step S1, a charging process for the motorcycle 1 can be performed, so that current flows from an external charging source (not shown) to the motorcycle 1, or in the opposite direction in the case of bidirectional charging. For this purpose, for example, a charging plug 3 can be connected to a charging device 2 of the motorcycle 1.

[0033] In a step S2, a sensor device 4, which includes, for example, an inclination sensor, can monitor the position and / or movement of the motorcycle 1 in space. In this case, the acceleration and angular position of the motorcycle 1 in space can be compared with predetermined limit values ​​(position parameter threshold values), which can be defined, for example, for an inclination of more than 15° and a rotation rate about an X-axis of the motorcycle 1 of more than 1 rad / s. This evaluation can be performed, for example, in a control unit 5 of the motorcycle 1.

[0034] In step S3, if the limit values ​​(position parameter threshold) are detected to be exceeded, the control unit 5 can send a control signal for emergency shutdown to the charging device 2 on the motorcycle. Upon receiving the control signal, the charging device 2 can perform an emergency shutdown of the charging process. Overall, the examples show how a safety shutdown of a charging current in electric motorcycles can be implemented using an integrated acceleration sensor.

[0035] List of reference symbols Motorcycle Charging device Charging plug Sensor device Control unit

Claims

Patent claims 1. Method for emergency shutdown of a charging process for an electrically operated motorcycle (1), wherein during the charging process of the electrically operated motorcycle (1) at least one position parameter of the motorcycle (1) is monitored by a sensor device (4) of the motorcycle (1), wherein if a predetermined position parameter threshold value of the position parameter is exceeded, the charging process is switched off by controlling a charging device (2).

2. The method according to claim 1, wherein an inclination of the motorcycle (1) is monitored as a position parameter by an inclination sensor of the sensor device (4).

3. The method according to claim 2, wherein an inclination of 15 degrees is specified as the position parameter threshold value.

4. Method according to one of the preceding claims, wherein a rotation rate about a longitudinal axis of the motorcycle (1) is monitored by a rotation rate sensor of the sensor device (4).

5. The method according to claim 4, wherein a rotation rate of 1 rad / s is specified as the position parameter threshold value.

6. Method according to one of the preceding claims, wherein the charging process for the electrically operated motorcycle (1) is carried out by means of direct current charging.

7. Method according to one of the preceding claims, wherein the sensor device (4) Sensors of a driver assistance system of the motorcycle (1) are used.

8. Method according to one of the preceding claims, wherein a control unit (5) of the motorcycle (1) the position parameter is monitored for exceeding the specified limit value, whereby the control unit (5) generates a control signal for emergency shutdown of the charging process and sends it to the motorcycle-internal charging device (2) if the specified limit is exceeded.

9. Method according to one of the preceding claims, wherein bidirectional charging is carried out as the charging process.

10. Motorcycle (1), comprising a sensor device (4), a control unit (5) and a charging device (2), wherein the sensor device (4) is designed to determine a position parameter of the motorcycle (1) during a charging process, wherein the control unit (5) is designed to compare the determined position parameter with a predetermined position parameter threshold value and, if the predetermined position parameter threshold value is exceeded, to generate a control signal and to send it to the charging device (2), wherein the charging device (2) is designed to switch off the charging process upon receipt of the generated control signal.

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