Abstract: A method for controlling a charging apparatus of a vehicle, in particular an electric or hybrid vehicle, wherein the charging apparatus has a charging device including a protection and monitoring device. The vehicle includes a high-voltage on-board power system and an electrical energy storage apparatus connected to the high-voltage on-board power system. The method includes electrically connecting the high-voltage on-board power system to charging connections of an energy supply system by the charging apparatus. The charging connections include a neutral conductor, a protective conductor and at least one phase conductor. A protective conductor resistance is detected between the neutral conductor and the protective conductor by feeding in a test current by the protection and monitoring device. A frequency of the test current is filtered out of the compensation frequency range on a narrowband basis.

Abstract: A vehicle heater (10) comprises a main body (12) carrying a non-intrinsically safe heat conductor layer (14), and a temperature monitoring device (16, 18, 20, 44) assigned to the heat conductor layer (14). The temperature monitoring device (16, 18, 20, 44) is designed to distinguish and to report at least the three following states: normal operation, reversible malfunction and irreversible malfunction. Moreover, a method for monitoring a vehicle heater (10) is suggested in which the following states are distinguished and reported: normal operation, reversible malfunction and irreversible malfunction.

Abstract: A vehicle heater comprises a main body carrying a non-intrinsically safe heat conductor layer, and a sensor device allocated to the heat conductor layer and provided to detect an exceedance of a temperature threshold value. The sensor device comprises a sensor layer arranged on the side of the heat conductor layer facing away from the main body which is monitored for current flows which may occur substantially in the direction of its surface normal. In a method for producing a vehicle heater a main body of the vehicle heater is equipped with a non-intrinsically safe heat conductor, and a sensor device for detecting exceedances of a temperature threshold value. A sensor layer provided to be monitored for current flows which may occur substantially in the direction of the surface normal of the sensor layer is allocated to the heat conductor layer on its side facing away from the main body to form the sensor device.

Abstract: A method for controlling a charging apparatus of a vehicle, in particular an electric or hybrid vehicle, wherein the charging apparatus has a charging device including a protection and monitoring device. The vehicle includes a high-voltage on-board power system and an electrical energy storage apparatus connected to the high-voltage on-board power system. The method includes electrically connecting the high-voltage on-board power system to charging connections of an energy supply system by the charging apparatus. The charging connections include a neutral conductor, a protective conductor and at least one phase conductor. A protective conductor resistance is detected between the neutral conductor and the protective conductor by feeding in a test current by the protection and monitoring device. A frequency of the test current is filtered out of the compensation frequency range on a narrowband basis.

Abstract: In a method for producing a vehicle heater (10), a main body (12) of the vehicle heater (10) is equipped with a non-intrinsically safe heat conductor layer (14), and a sensor device (16, 18, 20) for detecting exceedances of a temperature threshold value. To form the sensor device (16, 18, 20) a sensor layer (16) is sprayed on without the main body (12) being exposed to temperatures normal for baking processes. A vehicle heater (10) is equipped with a main body (12) carrying a non-intrinsically safe heat conductor layer (14), and with a sensor device (16, 18, 20) allocated to the heat conductor layer (14) and provided to detect the exceedance of a temperature threshold value. The sensor device (16, 18, 20) comprises a sprayed-on sensor layer (16) produced without the main body (12) assuming temperatures that are normal for baking processes.

Abstract: Electric heating having at least one first resistance heating device and a second resistance heating device, at least one pulse width modulation device, which is capable of a pulse width modulated operation of the first resistance heating device and/or the second resistance heating device, as well as at least one switching device. For a heating operation, the switching device can be capable of selectively switching the first resistance heating device and the second resistance heating device between a first heating mode in which the first resistance heating device and the second resistance heating device are electrically connected in series, and a second heating mode in which the first resistance heating device and the second resistance heating device are electrically connected in parallel. A vehicle having electric heating as well as to a method for controlling electric heating is also provided.

Abstract: An electrical heating unit for a heating device for a vehicle is provided comprising a heating layer and a heat conducting body. The heating layer may comprise at least one heating resistor, and the heat conducting body may comprise a heat absorbing face for absorbing heat from the heating layer and a heat releasing face for releasing heat to a heat carrier fluid. The heat conducting body may comprise a base body and at least two heat releasing bodies, wherein the base body and the heat releasing body may be connected to each other by substance bonding or integrally formed, wherein the heat absorbing face is a surface of the base body facing the heating layer and extending parallel to the heating layer, and the heat releasing face is a surface of the heat releasing bodies. A heating device and method for producing a heating unit is provided.

Abstract: A vehicle heater (10) comprises a main body (12) carrying a non-intrinsically safe heat conductor layer (14), and a sensor device (16, 18, 20) allocated to the heat conductor layer (14) and provided to detect an exceedance of a temperature threshold value. The sensor device (16, 18, 20) comprises a sensor layer arranged on the side of the heat conductor layer (14) (16) facing away from the main body (12) which is monitored for current flows which may occur substantially in the direction of its surface normal (42). In a method for producing a vehicle heater (10) a main body (12) of the vehicle heater (10) is equipped with a non-intrinsically safe heat conductor layer (14), and a sensor device (16, 18, 20) for detecting exceedances of a temperature threshold value.

Abstract: A vehicle heater (10) comprises a main body (12) carrying a non-intrinsically safe heat conductor layer (14), and a temperature monitoring device (16, 18, 20, 44) assigned to the heat conductor layer (14). The temperature monitoring device (16, 18, 20, 44) is designed to distinguish and to report at least the three following states: normal operation, reversible malfunction and irreversible malfunction. Moreover, a method for monitoring a vehicle heater (10) is suggested in which the following states are distinguished and reported: normal operation, reversible malfunction and irreversible malfunction.

Abstract: An electrical heating unit for a heating device for a vehicle is provided comprising a heating layer and a heat conducting body. The heating layer may comprise at least one heating resistor, and the heat conducting body may comprise a heat absorbing face for absorbing heat from the heating layer and a heat releasing face for releasing heat to a heat carrier fluid. The heat conducting body may comprise a base body and at least two heat releasing bodies, wherein the base body and the heat releasing body may be connected to each other by substance bonding or integrally formed, wherein the heat absorbing face is a surface of the base body facing the heating layer and extending parallel to the heating layer, and the heat releasing face is a surface of the heat releasing bodies. A heating device and method for producing a heating unit is provided.

Abstract: The invention relates to an electric heating comprising at least one first resistance heating device and a second resistance heating device, at least one pulse width modulation device, which is capable of a pulse width modulated operation of the first resistance heating device and/or the second resistance heating device, as well as at least one switching device. For a heating operation, the switching device is capable of selectively switching the first resistance heating device and the second resistance heating device between a first heating mode in which the first resistance heating device and the second resistance heating device are electrically connected in series, and a second heating mode in which the first resistance heating device and the second resistance heating device are electrically connected in parallel. The invention further relates to a vehicle comprising an electric heating as well as to a method for controlling an electric heating.