High-voltage device and external playback device and system

Abstract

High-voltage device with - at least one high-voltage component, - at least one current sensor (20) which is assigned to a respective one of the at least one high-voltage component, - at least one transmitting device (23) to which at least one respective current sensor (20) is assigned, wherein the at least one transmitting device (23) is designed to provide, by means of a wireless radio connection, an information signal (IS) depending on a measurement signal of the at least one respective current sensor (20), which information signal comprises information about whether or not a potential danger emanates from the respective one of the at least one high-voltage components, for reproducing the information on an external reproducing device (30) in which the information signal (IS) comprises position information which is representative of a position of the at least one respective current sensor (20) in the high-voltage device, wherein the high-voltage device is a vehicle (1), in which the information signal (IS) has a vehicle identifier that is representative of a vehicle type of the vehicle (1).

Description

[0001] The invention relates to a high-voltage device. Furthermore, the invention relates to a corresponding external playback device. Furthermore, the invention relates to a corresponding system comprising the high-voltage device and the external playback device.

[0002] If an accident occurs in or with a high-voltage device, it is often not possible for people outside the high-voltage device to recognize whether the high-voltage device is live and therefore whether the high-voltage device poses a danger.

[0003] US 2010 / 0 182 157 A1 discloses a sensor comprising a detector circuit configured to measure the current, voltage, and temperature of a battery. A processor is in communication with the detector circuit and is configured to convert the current, voltage, and temperature into battery information. A transmitter is in communication with the processor and is configured to wirelessly transmit the battery information. A receiver is in wireless communication with the transmitter and is configured to receive the battery information and control an external component in response to the battery information.A method includes measuring the current, voltage, and temperature of the battery, converting the current, voltage, and temperature into battery information, wirelessly transmitting the battery information to the receiver, and controlling the external component depending on the battery information.

[0004] US 2012 / 0050067 A1 discloses a system for notifying emergency responders of an abnormal condition of a vehicle involved in a collision. The system provides a short-range wireless system controller that communicates with a battery controller. The short-range wireless system controller also communicates with a communication device connected to an emergency responder via a short-range wireless RF network. If the physical parameters of the battery indicate that the battery is damaged and the vehicle is therefore inoperable, this information is sent to the emergency responder's communication device via the short-range wireless RF network. This allows the emergency responder to quickly assist accident victims without wasting time determining whether or not the vehicle's high-voltage battery is in nominal condition after the accident.

[0005] DE 10 2012 102 664 A1 discloses a warning device for detecting and indicating a potentially dangerous condition of a high-voltage battery system, comprising at least one alarm unit and at least one sensor unit. The sensor unit is coupled to the high-voltage battery system and the alarm unit in such a way that, when the warning device is in operation, a potentially dangerous condition caused by at least one variable detected by the sensor unit is indicated by the alarm unit.

[0006] DE 10 2011 109 707 A1 relates to a display method for a vehicle, in particular an electric vehicle. The method determines whether a voltage is present in a high-voltage network of the vehicle. Depending on the determination of whether a voltage is present in the high-voltage network, a signal is output that can be perceived outside the vehicle.

[0007] DE 10 2011 083 600 A1 discloses a method for a vehicle. The vehicle is, in particular, an electric and / or hybrid vehicle. The vehicle has at least one sensor configured to detect electrical variables relevant to operational safety. In the method for testing a vehicle, at least one electrical variable relevant to operational safety is detected using the vehicle's sensor.

[0008] DE 10 2010 050 976 A1 discloses a drive device for a motor vehicle, comprising at least one energy generation unit and at least one electrical energy storage unit, an electrical line system provided for supplying voltage to at least one electric drive motor by means of the energy generation unit and / or the energy storage unit, a diagnostic device, and a control and / or regulating unit coupled to the diagnostic device, which control and / or regulating unit is provided for detecting a fault condition and at least partially de-energizing the electrical line system. The drive device has an emergency operation device, which, in at least one operating state, is provided for restoring or maintaining the voltage supply at least for the electric drive motor depending on a detected fault condition.

[0009] DE 10 2009 027 177 A1 relates to a warning system for battery systems, comprising one or more sensors for monitoring the condition of battery systems; means for outputting warning signals and a regulating and control unit which is connected to the sensors and to the means for outputting warning signals in such a way that measured values from the sensors can be recorded by the regulating and control unit, processed and compared with a reference value and, upon detection of a deviation of a measured value from a reference value, the means for outputting warning signals can be triggered.

[0010] The object underlying the invention is to provide a high-voltage device and an external playback device which contribute to the contactless determination of whether a danger emanates from the high-voltage device.

[0011] The problem is solved by the features of the independent patent claims.

[0012] The invention is characterized by a high-voltage device. The invention is further characterized by a corresponding external playback device. The invention is further characterized by a system comprising the high-voltage device and the external playback device.

[0013] The high-voltage device has at least one high-voltage component. The high-voltage device has at least one current sensor assigned to a respective high-voltage component. The high-voltage device has at least one transmitting device to which at least one respective current sensor is assigned. The at least one transmitting device is designed to provide an information signal by means of a wireless radio connection depending on a measurement signal from the at least one respective current sensor. The information signal includes information about whether or not a potential hazard emanates from the respective high-voltage component. The at least one transmitting device is designed to provide the information signal by means of a wireless radio connection.

[0014] For example, the high-voltage device has a transmitting device for each current sensor, to which only one current sensor is assigned.

[0015] Such high-voltage components are, for example, components intended for the generation and / or transmission and / or consumption of electrical energy at a high electrical voltage. Such a high electrical voltage is, for example, at least 300 V. Such a high-voltage component is, for example, an electrical energy storage device and / or an electric drive motor and / or a cable and / or a plug and / or a connection in the high-voltage device.

[0016] The current sensor is, for example, integrated into a plug and / or a so-called black box and / or a cable.

[0017] Such a high-voltage device is, for example, a vehicle, such as a hybrid or electric vehicle and / or a test bench and / or a photovoltaic system and / or an energy supply system and / or a rail vehicle system and / or a rail vehicle.

[0018] Such a high-voltage device can provide the information signal to the external playback device, which contains information about whether or not a potential hazard emanates from the respective high-voltage component. The information includes, for example, whether the respective at least one current sensor is measuring an electrical current and / or the measured electrical current level and / or whether the respective at least one current sensor is defective. This allows, for example, a rescue worker to easily and contactlessly determine whether a hazard emanates from the high-voltage device and whether or not they can safely approach the high-voltage device.

[0019] The information signal comprises position information that is representative of a position of the at least one respective current sensor in the high-voltage device.

[0020] This makes it very easy for rescuers, for example, to determine where the respective current sensor is located in the high-voltage device. This allows them to determine where in the high-voltage device a potential hazard may be emanating.

[0021] The high-voltage device is a vehicle.

[0022] Especially with a vehicle such as a hybrid vehicle and / or an electric vehicle, it is important for the rescue team to know whether they are allowed to approach the vehicle or not in order to be able to initiate rescue measures quickly and safely.

[0023] The information signal has a vehicle identification that is representative of the vehicle type.

[0024] Especially with modern vehicles, it's often not immediately obvious from the outside whether a vehicle is an electric vehicle and / or a hybrid. By transmitting the vehicle type, emergency services, for example, can determine whether the vehicle is an electric vehicle and / or a hybrid vehicle.

[0025] The external playback device has a radio receiving unit configured to receive the information signal provided by the high-voltage device or by an advantageous embodiment of the high-voltage device. The external playback device is configured, in response to receipt of the information signal, to display a respective two-color traffic light associated with the at least one respective current sensor. A first traffic light color is representative of the fact that no danger emanates from the respective high-voltage component. A second traffic light color is representative of the fact that a danger emanates from the respective high-voltage component.

[0026] The external playback device has, for example, a display, such as a screen, for playback. The external playback device is, in particular, a portable device, such as a smartphone and / or a tablet PC.

[0027] The respective two-color traffic light makes it easy to indicate on the external display device whether or not a particular high-voltage component poses a hazard. For example, the first traffic light color can be green and the second traffic light color red.

[0028] The information signal includes position information representative of a position of the at least one respective current sensor in the high-voltage device. The external display device is configured to display the respective two-color traffic light at the position of the at least one respective current sensor.

[0029] This allows the position of at least one current sensor to be easily displayed on the external display device. For example, rescue personnel can easily determine where the respective current sensor is located in the high-voltage device. This allows them to determine where in the high-voltage device a potential hazard may be emanating.

[0030] The high-voltage device is a vehicle. The information signal has a vehicle identifier representative of a vehicle type of the vehicle. The external display device is configured to display the respective two-color traffic light at the position of the at least one respective current sensor on a vehicle image matching the vehicle type of the vehicle.

[0031] This allows the external display device to easily and clearly show where the respective at least one current sensor and the respective high-voltage component is located in the vehicle.

[0032] Embodiments of the invention are explained below with reference to the schematic drawings.

[0033] They show: Fig. 1 a system, Fig. 2 an illustration of a vehicle and Fig. 3 another illustration of the vehicle.

[0034] Elements of the same construction or function are marked with the same reference symbols throughout the figures.

[0035] Fig. 1 shows a system S with a vehicle 1 as an example of a high-voltage device. The vehicle 1 is, in particular, an electric vehicle and / or a hybrid vehicle, i.e., a vehicle 1 with a purely electric drive and / or with a combination of an electric drive with, for example, an internal combustion engine as the drive.

[0036] Alternatively, the high-voltage device can also be a test bench and / or a photovoltaic system and / or a power supply system and / or a rail vehicle system and / or a rail vehicle and / or a B2U system. A B2U system is a system for the reuse of used high-voltage vehicle batteries as electrical energy storage for stationary applications.

[0037] The high-voltage device has at least one high-voltage component. Such high-voltage components include, for example, an electric drive motor 3 and / or a connection 5 of the electric drive motor 3 and / or a cable 7 and / or a high-voltage battery 9 and / or a vehicle component 11 to which a high voltage can be applied, wherein a high voltage in this context is, for example, a voltage of at least 300 V. The vehicle component 11 is, for example, a continuous-flow heater and / or a component of an electric drive unit and / or an electric motor.

[0038] The high-voltage device has at least one current sensor 20 assigned to the respective high-voltage component. Such a current sensor 20 is, for example, a flow current sensor. Such a current sensor 20 is, for example, integrated into a connector or a black box and / or into the cable 7.

[0039] For example, a current sensor 20 is installed at each connection 5 of the electric drive motor 3. Alternatively or additionally, a current sensor 20 is installed at each cable 7. Alternatively or additionally, several current sensors 20 are installed at each cable 7.

[0040] The high-voltage device has at least one transmitting device 23, to which at least one respective current sensor 20 is assigned. In particular, the high-voltage device has a transmitting device 23 for each current sensor 20, to which only one current sensor 20 is assigned in each case.

[0041] The at least one transmitting device 23 is designed to provide, by means of a wireless radio connection, an information signal IS depending on a measurement signal of the at least one respective current sensor 20, which information signal IS contains information about whether or not a potential danger emanates from the respective high-voltage component, for reproducing the information on an external reproducing device 30 of the system S.

[0042] The external playback device 30 is, for example, a portable device such as a smartphone and / or a tablet PC.

[0043] For this purpose, the transmitting device 23 has, for example, a computing unit, a program and data memory, and at least a first and a second interface. The computing unit and / or the program and data memory can be configured in one unit or distributed across multiple units. The first interface is configured, for example, to receive the measurement signal from the at least one respective current sensor 20. The second interface is configured, for example, to provide the information signal IS via the wireless radio connection. The wireless radio connection is, for example, a Bluetooth connection. Alternatively, the wireless radio connection is, for example, a connection according to a mobile radio standard, such as GSM, UMTS, or LTE.

[0044] If the measurement signal of the respective at least one current sensor 20 indicates, for example, a defect in the respective at least one current sensor 20, this may indicate a hazard. If, for example, a current sensor 20 of a high-voltage component reports using the measurement signal that an electrical current is flowing and another current sensor 20 of the same high-voltage component reports that no current is flowing, it can be concluded that a hazard emanates from the high-voltage component because, for example, there is a short circuit between the two current sensors 20. If a high-voltage component has only one current sensor 20, for example, if this current sensor reports that no current is flowing, a hazard may also be assumed.

[0045] If all current sensors 20 of the high-voltage device indicate that a normal current is flowing, it can be concluded that no danger arises from the high-voltage device. Alternatively or additionally, it can be concluded that no danger arises from the high-voltage device if all current sensors 20 of the high-voltage device indicate that no current is flowing.

[0046] The information signal IS comprises, for example, position information that is representative of a position of the at least one respective current sensor 20 in the high-voltage device.

[0047] The information signal IS, for example, has a vehicle identification that is representative of a vehicle type of vehicle 1.

[0048] The information signal IS is provided to the external playback device 30. For this purpose, the external playback device 30 has, in particular, a radio receiving unit 40 that is configured to receive the information signal IS.

[0049] In response to receiving the information signal IS, the playback device 30 is designed to display, for example, on a display 43 of the external playback device 30, a respective two-color traffic light 13 which is associated with the at least one respective current sensor 20 (see Fig. 2). A first traffic light color indicates that no danger arises from the respective high-voltage component. A second traffic light color indicates that a danger arises from the respective high-voltage component. The first traffic light color is, for example, green. The second traffic light color is, for example, red.

[0050] For this purpose, the external playback device 30 additionally comprises, for example, a computing unit, a program and data memory, at least one interface, and the radio reception unit 40. The computing unit and / or the program and data memory and / or the radio reception unit 40 can be implemented in a single unit or distributed across multiple units. The radio reception unit 40 is configured, for example, to receive the information signal IS. The interface is configured, for example, to communicate with the display 43.

[0051] The respective two-color traffic light 13 is displayed, for example, at the position of the at least one respective current sensor 20 if the information signal IS comprises the position information that is representative of the position of the at least one respective current sensor 20 in the high-voltage device.

[0052] Alternatively or additionally, the respective two-coloured traffic light 13 is displayed on a vehicle image matching the vehicle type of vehicle 1 if the information signal IS has the vehicle identification that is representative of the vehicle type of vehicle 1. For this purpose, for example, vehicle 1 is shown from a view from above (see Fig. 2) and shown from a view from below (see Fig. 3).

[0053] If the information signal IS includes the vehicle identification, the external playback device 30 can, for example, additionally detect whether individual transmitting devices 20 of the vehicle 1 are not transmitting an information signal IS, since, for example, the vehicle identification can be used to determine how many transmitting devices 20 are arranged in the respective vehicle 1. If individual transmitting devices 20 of the vehicle 1 are not transmitting an information signal IS, this can also be indicated as a danger, for example by the respective two-color traffic lights 13 displaying the second traffic light color assigned to current sensors 20 assigned to these individual transmitting devices 20.

[0054] Thus, by means of the high-voltage device and the external playback device 30, a contribution can be made to enabling, for example, a rescue worker to easily and contactlessly determine whether a danger emanates from the high-voltage device and whether or not they can approach the high-voltage device. List of reference symbols 1 vehicle 3 electric drive motor 5 Connection 7 cables 9 High-voltage battery 11 Vehicle components 13 two-color traffic lights 20 current sensor 23 Transmitting device 30 playback device 40 radio receiver unit 43 Advertisement IS information signal S System

Claims

[1] High-voltage device with - at least one high-voltage component, - at least one current sensor (20) which is assigned to a respective one of the at least one high-voltage component, - at least one transmitting device (23) to which at least one respective current sensor (20) is assigned, wherein the at least one transmitting device (23) is designed to provide, by means of a wireless radio connection, an information signal (IS) depending on a measurement signal of the at least one respective current sensor (20), which information signal comprises information about whether or not a potential danger emanates from the respective one of the at least one high-voltage components, for reproducing the information on an external reproducing device (30) in which the information signal (IS) comprises position information which is representative of a position of the at least one respective current sensor (20) in the high-voltage device, wherein the high-voltage device is a vehicle (1), in which the information signal (IS) has a vehicle identifier that is representative of a vehicle type of the vehicle (1). [2] An external playback device (30) comprising a radio receiving unit (40) configured to receive an information signal (IS) provided by a high-voltage device according to claim 1, wherein the external playback device (30) is configured, in response to receipt of the information signal (IS), to display a respective two-color traffic light (13) associated with the at least one respective current sensor (20), wherein a first traffic light color is representative of the fact that no danger emanates from the respective high-voltage component and a second traffic light color is representative of the fact that a danger emanates from the respective high-voltage component, wherein the information signal (IS) comprises position information representative of a position of the at least one respective current sensor (20) in the high-voltage device, and wherein the external playback device (30) is configured toto display the respective two-color traffic light (13) at the position of the at least one respective current sensor (20), in which the high-voltage device is a vehicle (1) and in which the information signal (IS) has a vehicle identifier that is representative of a vehicle type of the vehicle (1), and in which the external playback device (30) is designed to display the respective two-color traffic light (13) at the position of the at least one respective current sensor (20) on a vehicle image that matches the vehicle type of the vehicle (1). [3] System (S) having - a high-voltage device according to claim 1 and - an external playback device (30) according to claim 2.

Images