A method for reactivation of an electrical system of a vehicle comprising a first electrical system operating at a first lower voltage and a second electrical system operating at a second higher voltage, comprising: detecting a fault or a crash situation in the second electrical system; disconnecting a power source of the second electrical system; determining the fault of the second electrical system is no longer present or that the crash situation is resolved; reconnecting the power source to the second electrical system and increasing the voltage of the second electrical system from zero to an intermediate voltage lower than the second voltage; and if a detected current in the second electrical system is higher than a current threshold value; or if a detected voltage of the first electrical system is higher than a voltage threshold value; reducing the voltage of the second electrical system to zero.

A vehicle includes a chassis, a driveline coupled to the chassis, and a control system. The control system is configured to monitor a condition of at least one of the vehicle, an area around the vehicle, or an operator of the vehicle; and control operation of the driveline based on the condition. Controlling the operation of the driveline includes at least one of limiting a speed at which the driveline drives the vehicle or shutting down the driveline and isolating a component of the driveline.

The invention relates to an improvement in a breath alcohol test devices includes within the handheld unit containing a fuel cell, a miniaturized self calibrating test device thereby avoiding the need for 30, 60 and 90 day calibration testing. It also relates to various tamper or circumvention improvements that may be used alone or in combination with the self calibration improvement, including cameras to record a driver providing a breath sample and to verify the location of the driver within a vehicle.

A vehicle includes: at least one rotary electric machine; an inverter that drives the rotary electric machine; a capacitor connected between a paired electric power lines that is connected to the inverter; and a control unit. When a vehicle collision is detected, the control unit executes first control for discharging electric charges stored in the capacitor by performing a switching operation of the inverter so as to prevent a flow of a q-axis current but cause a flow of a d-axis current to the rotary electric machine. The control unit stops the first control in a specified case and executes second control for performing the switching operation of the inverter so as to reduce the current flowing through the rotary electric machine to be lower than that during execution of the first control. The control unit executes third control for shutting down the inverter after execution of the second control.

A device for controlling sudden unintended acceleration according to an embodiment of the present disclosure includes a sensor for detecting a current acceleration of a vehicle, a first controller that calculates a motor torque command value for driving a motor, calculates an expected acceleration of the vehicle based on the motor torque command value, and compares the expected acceleration with the current acceleration, and a second controller that compares the motor torque command value with a preset value. Therefore, the device may determine a cause of the sudden unintended acceleration and block the sudden unintended acceleration based on the determination result to improve safety of a driver.

The on-vehicle security device 10 includes log collection means 11 for collecting communication logs, log analysis means 12 for analyzing the collected communication logs, and control means 13 for having alerting means issue an alert when it is determined that an error occurrence frequency exceeds a predetermined threshold value, based on an analysis result of the communication logs by the log analysis means 12, and blocks a communication path where an error has occurred when a state where the error occurrence frequency exceeds the predetermined threshold value continues after having the alerting means issue the alert.

A battery module for use with an electric vehicle is disclosed. In one aspect, the battery module includes a power source and an isolation monitoring circuit electrically connected with the power source. The electric vehicle includes a Y-capacitor module. The isolation monitoring circuit can discharge the Y-capacitor module when the battery module is electrically connected with the electric vehicle. According to at least one of the disclosed embodiments, no additional HV efforts to discharge a Y-capacitor, and discharge of a vehicle Y-capacitor can be performed on the battery side.

A device for encapsulating a battery includes an enclosure including a casing and a cover and forming a housing for receiving the battery, a circuit breaker arranged in the enclosure, and an actuating element of the circuit breaker arranged outside the enclosure or partially outside the enclosure.

A device for controlling sudden unintended acceleration according to an embodiment of the present disclosure includes a sensor for detecting a current acceleration of a vehicle, a first controller that calculates a motor torque command value for driving a motor, calculates an expected acceleration of the vehicle based on the motor torque command value, and compares the expected acceleration with the current acceleration, and a second controller that compares the motor torque command value with a preset value. Therefore, the device may determine a cause of the sudden unintended acceleration and block the sudden unintended acceleration based on the determination result to improve safety of a driver.

Systems and methods are provided that prevent or override a hybrid electric vehicle (HEV) from operating in an engine-on mode or condition when the HEV is coasting, such as when the HEV is traveling on a downhill grade. Regenerative torque is generated by one or more electric motors of the HEV so that the pinion gear of a planetary gear set of a power distribution mechanism operates below an overspeed limit at which hardware failure may occur.