Abstract:
A power charging assembly (18) and methods are provided to provide a pre-charge low-current state, a steady-state, high-current charging state, and an unconnect state for an electrical load (16) of an electrical propulsion system in a hybrid electrical vehicle. The power charging assembly (18) includes a positive contactor device (26), a negative contactor device (28), and a non-contactor device (29) means. The rate at which that electrical load (16) is pre-charged may be effectively controlled by using a pulse-width modulated signal received by the non-contactor device means (29). A current-only carrying positive (26) or negative contactor (28) may be configured with the non-contactor (29) device means to further prevent electrical arcing of the contacts of the positive (26) and the negative (28) contactor during power charging assembly (18) operation.
Abstract:
A potential collision is predicted by comparing estimates of the time-to-brake (TTB) and the time-to-turn (TTT) of a host vehicle (10) with a computed time-to-collision (TTC) (24; 64, 66, 76). The collision is deemed to be unavoidable when the smaller of TTB and TTT is greater than TTC. The TTT estimate is based in part on the lateral acceleration capability of the vehicle (10), and the lateral acceleration is initialized to a low value corresponding to its instantaneous capability (52), and is set incrementally higher than the actual lateral acceleration when the driver initiates evasive turning (54). The TTT and TTB estimates are increased by the time required to pre-charge the vehicle brakes (70, 80) so that brake pre-charging can be automatically initiated (74, 84) when required to optimize collision mitigation due to braking.
Abstract:
A power charging assembly and methods are provided to provide a pre-charge low-current state, a steady-state, high-current charging state, and an unconnect state for an electrical load of an electrical propulsion system in a hybrid electrical vehicle (HEV). The power charging assembly includes a positive contactor device, a negative contactor device, and a non-contactor device means. The rate at which that electrical load is pre-charged may be effectively controlled by using a pulse-width modulated (PWM) signal received by the non-contactor device means. A current-only carrying positive or negative contactor may be configured with the non-contactor device means to further prevent electrical arcing of the contacts of the positive and the negative contactor during power charging assembly operation.
Abstract:
An apparatus and method for remotely controlling multiple control functions from a single remote entry device (14) has a plurality of unique device transmission codes stored in the memory (48) of the remote entry device (14). Each code is selectable to enable a single remote entry device (10, 11) to remotely control functions in a plurality of different devices, such as vehicles (10, 11).