The proposed mechanism for weld detection, uses isolation monitoring circuits (which is used for measurement of the leakage current between battery positive and negative to the chassis ground (on pack or link side) and checks the health status of the contactors. The mechanism connects isolation monitoring circuit between two points on the battery pack (between two sides of the high current contactors) and measures the resistance of two points, therefore checking the continuity of the contactors in the system. Since it can measure a range of resistance, it can also check if a contactor is completely welded or it has been partially welded. This would be important because in case of partial weld, the car can fix the problem and remove the partial weld by activating and deactivating the contactors for several time, with or without inserting high current in the coil of the contactors. Since the proposed mechanism is using available measurement circuits of the isolation monitoring unit and these circuits are designed with high reliability (which is required for the electrical vehicles), the proposed mechanism is going to lower the cost of the entire vehicle while keeping the passenger safe.

The proposed mechanism for weld detection, uses isolation monitoring circuits (which is used for measurement of the leakage current between battery positive and negative to the chassis ground (on pack or link side) and checks the health status of the contactors. The mechanism connects isolation monitoring circuit between two points on the battery pack (between two sides of the high current contactors) and measures the resistance of two points, therefore checking the continuity of the contactors in the system. Since it can measure a range of resistance, it can also check if a contactor is completely welded or it has been partially welded. This would be important because in case of partial weld, the car can fix the problem and remove the partial weld by activating and deactivating the contactors for several time, with or without inserting high current in the coil of the contactors. Since the proposed mechanism is using available measurement circuits of the isolation monitoring unit and these circuits are designed with high reliability (which is required for the electrical vehicles), the proposed mechanism is going to lower the cost of the entire vehicle while keeping the passenger safe.

Provided is an onboard control apparatus (ECU) having a thermal radiating coating film capable of efficiently radiating heat generated from an electronic component to the outside of the casing. An onboard control apparatus includes: a circuit board stored in a housing; an electronic component mounted on the circuit board; and a thermal radiating coating film which is disposed on the electronic component to radiate heat generated from the electronic components, wherein the thermal radiating coating includes a resin and thermal radiating particles which radiate heat, and the thermal radiating particles and the resin have substantially same specific gravity.

A sheathed wire harness includes connectors to be fitted to counterpart connectors, electric wires connected to the connectors, and a fibrous resin cloth that is connected to the electric wires and surrounds the electric wires. The resin cloth includes a cover portion that can be moved to a closed position in which portions of the electric wires near the connectors are covered, and moved to an open position in which the portions of the electric wires near the connectors are exposed.

A sheathed wire harness includes connectors to be fitted to counterpart connectors, electric wires connected to the connectors, and a fibrous resin cloth that is connected to the electric wires and surrounds the electric wires. The resin cloth includes a cover portion that can be moved to a closed position in which portions of the electric wires near the connectors are covered, and moved to an open position in which the portions of the electric wires near the connectors are exposed.

A method and control system that implements a particular aircraft harnessing for an aircraft is provided. The control system includes an effector Line-Replaceable Unit (LRU) including a first connection port, a second connection port, and a first interconnect wire internally connecting the first connection port and the second connection port, a first control LRU connected using a first harnessing to the effector LRU, and a second control LRU connected using a second harnessing to the effector LRU, wherein the first control LRU and the second control LRU are configured to communicate using the first interconnect wire in the effector LRU.

A wire harness includes a linear trunk line section formed by bundling a plurality of power supply lines serving as linear wiring bodies wired in a vehicle and a pair of trunk line end distributors each of which is connected to a corresponding one of both ends of the linear trunk line section and distributes electric power from a power supply mounted on the vehicle to each connected appliance, the power supply being connected to at least one end of each of the trunk line end distributors. Thus, with the wire harness, a wiring path can be simplified by combining the linear trunk line section and the pair of trunk line end distributors.

Systems and methods provide an alternative high voltage cutoff technique for disconnecting a high voltage battery from an electrical network of a vehicle in the event of a fault condition. Embodiments include a vehicle system comprising an electrical bus and a battery module coupled to the electrical bus via a contactor and a disconnector. The vehicle system further includes a controller configured to switch the contactor to an open state, upon receiving a fault condition signal, and if the contactor failed to open, activating the disconnector to break electrical connection between the battery module and the electrical bus. In some embodiments, the fault condition signal is generated upon detecting a vehicular impact. In some embodiments, the disconnector is a pyrotechnic device powered by a vehicle battery included in the vehicle system.

Systems and methods provide an alternative high voltage cutoff technique for disconnecting a high voltage battery from an electrical network of a vehicle in the event of a fault condition. Embodiments include a vehicle system comprising an electrical bus and a battery module coupled to the electrical bus via a contactor and a disconnector. The vehicle system further includes a controller configured to switch the contactor to an open state, upon receiving a fault condition signal, and if the contactor failed to open, activating the disconnector to break electrical connection between the battery module and the electrical bus. In some embodiments, the fault condition signal is generated upon detecting a vehicular impact. In some embodiments, the disconnector is a pyrotechnic device powered by a vehicle battery included in the vehicle system.

Provided is a configuration in which, in an in-vehicle DC-DC converter, a limitation value of input power or output power can be determined according to the temperature of a power storage unit. In an in-vehicle DC-DC converter (1), a determination unit uses a scheme for determining whether or not input power of an input-side conductive path has reached an input power limitation value that is determined according to an input voltage of the input-side conductive path and a temperature range to which the temperature of an input-side power storage unit belongs, or a scheme for determining whether or not output power of an output-side conductive path has reached an output power limitation value that is determined according to an output voltage of the output-side conductive path and a temperature range to which the temperature of an output-side power storage unit belongs.