A fuel cell module includes a case body containing a cell stack body formed by stacking a plurality of power generation cells. The case body includes a plurality of connectors for mounting the fuel cell module into a fuel cell vehicle. The plurality of connectors include a first connector group used for mounting the fuel cell module into a first fuel cell vehicle in a manner that a stacking direction of the fuel cell module is substantially aligned with a first direction, and a second connector group used for mounting the fuel cell module into a second fuel cell vehicle in a manner that the stacking direction of the fuel cell module is substantially aligned with a second direction. Some connectors are common to both the first connector group and the second connector group.

A fuel cell module includes a case body containing a cell stack body formed by stacking a plurality of power generation cells. The case body includes a plurality of connectors for mounting the fuel cell module into a fuel cell vehicle. The plurality of connectors include a first connector group used for mounting the fuel cell module into a first fuel cell vehicle in a manner that a stacking direction of the fuel cell module is substantially aligned with a first direction, and a second connector group used for mounting the fuel cell module into a second fuel cell vehicle in a manner that the stacking direction of the fuel cell module is substantially aligned with a second direction. Some connectors are common to both the first connector group and the second connector group.

Vehicle mounted Radio Frequency Identification (RFID) systems and associated methods are provided. An example vehicle mounted RFID system is configured to operate an RFID system in a high-power mode. The example vehicle mounted RFID system is further configured to determine that an operating state of a vehicle switched from an active charging state to an inactive state. The example vehicle mounted RFID system is further configured to, in response to determine that the operating state of the vehicle switched from the active charging state to the inactive state, initialize a timer for a period of time. The example vehicle mounted RFID system is further configured to, in response to an elapse of the period of time, switch the RFID system to a low-power mode.

Vehicle mounted Radio Frequency Identification (RFID) systems and associated methods are provided. An example vehicle mounted RFID system is configured to operate an RFID system in a high-power mode. The example vehicle mounted RFID system is further configured to determine that an operating state of a vehicle switched from an active charging state to an inactive state. The example vehicle mounted RFID system is further configured to, in response to determine that the operating state of the vehicle switched from the active charging state to the inactive state, initialize a timer for a period of time. The example vehicle mounted RFID system is further configured to, in response to an elapse of the period of time, switch the RFID system to a low-power mode.

The invention relates to a method for protecting an on-board electrical network of a truck having a base-line equipment provided by a truck manufacturer, and having base-line loads having a current consumption, an auxiliary equipment fitted a posteriori by a truck body builder, and having auxiliary loads having a current consumption, and a battery. The method further comprises, when the engine of the truck is ON: determining that the engine is to be turned off, determining a total current consumption of the truck, determining the battery maximum capacity, if the total current consumption is lower than the battery maximum capacity, turning off the engine, and, if the total current consumption is higher than the battery maximum capacity, reducing the current consumption of at least one adjustable auxiliary load.

The invention relates to a method for protecting an on-board electrical network of a truck having a base-line equipment provided by a truck manufacturer, and having base-line loads having a current consumption, an auxiliary equipment fitted a posteriori by a truck body builder, and having auxiliary loads having a current consumption, and a battery. The method further comprises, when the engine of the truck is ON: determining that the engine is to be turned off, determining a total current consumption of the truck, determining the battery maximum capacity, if the total current consumption is lower than the battery maximum capacity, turning off the engine, and, if the total current consumption is higher than the battery maximum capacity, reducing the current consumption of at least one adjustable auxiliary load.

A warning sign arrangement for a vehicle, comprises a warning sign, a warning sign hiding device comprising an electric locking mechanism, the warning sign hiding device being configured to hide the warning sign when the electric locking mechanism is active, and to expose the warning sign when the electric locking mechanism is deactivated, The electric locking mechanism comprises a first electric lock configured to be powered by a main electric power supply of the vehicle, and a second electric lock configured to be powered by a backup electric power supply of the vehicle, wherein both of the first electric lock and the second electric lock must be deactivated to expose the warning sign.

A warning sign arrangement for a vehicle, comprises a warning sign, a warning sign hiding device comprising an electric locking mechanism, the warning sign hiding device being configured to hide the warning sign when the electric locking mechanism is active, and to expose the warning sign when the electric locking mechanism is deactivated, The electric locking mechanism comprises a first electric lock configured to be powered by a main electric power supply of the vehicle, and a second electric lock configured to be powered by a backup electric power supply of the vehicle, wherein both of the first electric lock and the second electric lock must be deactivated to expose the warning sign.

An apparatus and a method for controlling a vehicle door are provided to automatically unlock a door locked in vehicle crash. The apparatus includes a main battery, a sub-battery, a door actuator to lock or unlock the vehicle door, and a door controller to unlock the vehicle door which is locked by supplying electric power to the door actuator through the sub-battery, when the door controller determines that supply of electric power from the main battery is failed in the vehicle crash.

An apparatus and a method for controlling a vehicle door are provided to automatically unlock a door locked in vehicle crash. The apparatus includes a main battery, a sub-battery, a door actuator to lock or unlock the vehicle door, and a door controller to unlock the vehicle door which is locked by supplying electric power to the door actuator through the sub-battery, when the door controller determines that supply of electric power from the main battery is failed in the vehicle crash.