초록 ▼

A regenerative braking system and method for a batteriless fuel cell vehicle includes a fuel cell stack, a plurality of ancillary loads, and a regenerative braking device that is coupled to at least one wheel of the vehicle. The regenerative braking device powers ancillary loads when the vehicle is

A regenerative braking system and method for a batteriless fuel cell vehicle includes a fuel cell stack, a plurality of ancillary loads, and a regenerative braking device that is coupled to at least one wheel of the vehicle. The regenerative braking device powers ancillary loads when the vehicle is coasting or braking. The fuel cell powers the loads when the vehicle is accelerating or at constant velocity. The regenerative braking device dissipates power in an air supply compressor when the vehicle is traveling downhill to provide brake assistance. The compressor can be run at high airflow and high pressure to create an artificially high load. A bypass valve is modulated to adjust the artificially high load of the compressor. A back pressure valve protects the fuel cell stack from the high airflow and pressure. A controller controls a brake torque of the regenerative braking device as a function of vehicle speed and modulates the bypass valve.

대표청구항 ▼

1. A regenerative braking system for a batteriless fuel cell vehicle, comprising:a fuel cell stack; an ancillary load; and a regenerative braking device coupled to at least one wheel of said vehicle, wherein said regenerative braking device powers said ancillary load when said vehicle is coasting or

1. A regenerative braking system for a batteriless fuel cell vehicle, comprising:a fuel cell stack; an ancillary load; and a regenerative braking device coupled to at least one wheel of said vehicle, wherein said regenerative braking device powers said ancillary load when said vehicle is coasting or braking and wherein said fuel cell powers said ancillary load when said vehicle is accelerating or traveling at a constant velocity.