A motor vehicle, in particular an at least partly electrically driven motor vehicle, has a battery device with at least one battery cell. The battery device is arranged in a floor region of the motor vehicle and has a protective device for protecting the battery device from mechanical action. The protective device has a protective plate, which is arranged in such a way that it covers the battery device at least in some regions, so that any mechanical actions are absorbed by the protective plate. The protective device also has an acoustic monitoring device, which monitors the protective plate acoustically and with which a signal can be output when a noise characteristic of a mechanical impairment of the protective plate is registered. Also disclosed is a method for monitoring the protective device.

A drive control system controls travel of an electric vehicle, the drive control system including a plurality of induction motors, one inverter that drives the plurality of induction motors, and a controller that controls the inverter. The controller includes a coupling disconnection detecting unit that calculates an estimated torque value on the basis of a total current and a voltage command value at the start of the induction motors, and detects disconnection of a coupling provided between the induction motors and a drive mechanism of the electric vehicle on the basis of the estimated torque value calculated and a torque command value.

This monitoring device comprises: an acceleration acquisition unit for acquiring acceleration data of a vehicle traveling along a track; an acceleration effective value acquisition unit for acquiring a plurality of acceleration effective values obtained by applying a bandpass filter for each of a plurality of constant specific bandwidths to the acceleration data; a corrected acceleration calculation unit for calculating a corrected acceleration on the basis of each of the acceleration effective values of the respective constant specific bandwidths and predetermined correction coefficients corresponding to the respective constant specific bandwidths; and an abnormality detection unit for detecting an abnormality of the vehicle or of the track on the basis of the magnitude of the corrected acceleration.

An automotive controller drives a plurality of relays to a first position or a second position depending on which of a first port and second port, that are both arranged to provide electrical power, has greater electrical power such that a traction battery receives current from the one of the first port and second port delivering the greater electrical power but not the other of the first port and second port.

A vehicle includes a controller that, responsive to data indicating a voltage associated with an inrush current through a main contactor exceeds a first threshold, commands the main contactor to open and inhibits the vehicle from being driven, and responsive to data indicating the voltage exceeds a second threshold less than the first threshold, commands the main contactor to sequentially open and then close.

The disclosure relates to an inverter device, including: an inverter circuit including a plurality of switching elements and a capacitor; an active discharge circuit including a first discharge resistor and a discharge switch connected in series, and connected between a positive electrode and a negative electrode of the capacitor; and a control circuit including a controller respectively connected to the switching elements and the discharge switch. The controller controls the switching elements and the discharge switch. The controller turns on the discharge switch to discharge the capacitor when the controller receives a discharge command from outside the inverter device and an electric motor is rotating.

A propulsion torque distribution system for a vehicle includes a controller in electronic communication with a plurality of vehicle systems. The controller executes instructions to receive at least one or more computational faults, one or more sensor faults, and a driver torque request. In response to receiving at least one of the one or more computational faults and the one or more sensor faults, the controller determines a fault that affects calculation of a primary torque request has occurred. In response to determining the fault that affects calculation of the primary torque request has occurred, the controller determines a severity of the fault. The controller determines a remedial state based on the severity of the fault. The remedial state indicates a corresponding action that is executed by the propulsion torque distribution system.

There are provided a pair of side sills provided at both outward sides, in a vehicle width direction, of a vehicle body and extending in a vehicle longitudinal direction, first and second battery units provided below a floor panel on respective inward sides, in the vehicle width direction, of and adjacently to the side sills, the first and second battery units being spaced apart from each other in the vehicle width direction, and a connecting member interconnecting the first and second battery units. The connecting member comprises a vehicle-width-direction connection portion to interconnect the first and second battery units so as to transmit a load, in the vehicle width direction, therebetween and plural deformation promotion portions provided adjacently to the vehicle-width-direction connection portion so as to cause deformation at the vehicle-width-direction connection portion when receiving the load caused by a vehicle side collision.

The present disclosure relates to an energy monitoring system for a vehicle, a vehicle comprising such an energy monitoring system and a method for manufacturing such an energy monitoring system.

The energy monitoring system comprises an on-board battery charging system, a traction voltage system and a control unit. The traction voltage system is connected to the on-board battery charging system and the control unit is configured to transfer energy stored in the traction voltage system to the on-board battery charging system in case an energy level of the traction voltage system exceeds a defined threshold.

A method and system of operating a multi-phase electric machine include operating an inverter to control the multi-phase machine. The inverter has a plurality of inverter legs including an auxiliary inverter leg. Each of the plurality of inverter legs has at least one switch device. The multi-phase machine has a plurality of phases in which each phase is controlled by a respective inverter leg of the inverter. The method and system also include determining whether a phase of the multi-phase machine is experiencing a partial phase loss, for example, by injecting a signal into the phases and analyzing the frequency response. In response to determining that a phase of the multi-phase machine is experiencing a partial phase loss, the method and system include utilizing the auxiliary inverter leg to supplement energy to the phase experiencing the partial phase loss to continue operating the multi-phase machine.