Vehicle stop/start system with regenerative braking
View Patent ↗A vehicle engine stop/start system with regenerative braking comprising a main engine for powering a vehicle having an accessory belt drive system, a motor/generator engaged with the accessory belt drive system, an operator activated switch for selecting an operating mode, in a first operating mode an electric energy storage portion for providing electric power to a heating system when the main engine is off, a relay for preventing operation of the heating system when the main engine is running, in a second operating mode the electric energy storage portion providing electric power to the motor/generator whereby the motor/generator drives an air conditioning compressor when the main engine is off, the air conditioning compressor connected to the accessory belt drive system, a relay for preventing operation of the air conditioning compressor using the motor/generator when the main engine is running, in a third operating mode the motor/generator is used to start the main engine after the main engine has been automatically stopped, and in a fourth operating mode during operation of the main engine the motor/generator generates an electric current during vehicle braking whereby the electric energy storage portion is recharged.
1. A vehicle engine stop/start system with regenerative braking comprising:
a main engine for powering a vehicle having an accessory belt drive system;
a motor/generator engaged with the accessory belt drive system;
a key receptacle connected to the stop/start system;
in a first operating mode an electric energy storage portion for providing electric power to a heating system when the main engine is off;
a relay for preventing operation of the heating system when the main engine is running;
in a second operating mode the electric energy storage portion providing electric power to the motor/generator whereby the motor/generator drives an air conditioning compressor when the main engine is off, the air conditioning compressor connected to the accessory belt drive system;
a relay for preventing operation of the air conditioning compressor using the motor/generator when the main engine is running;
in a third operating mode the motor/generator is used to start the main engine after the main engine has been automatically stopped; and
in a fourth operating mode during operation of the main engine the motor/generator generates an electric current during vehicle braking whereby the electric energy storage portion is recharged.
2. The vehicle engine stop/start system with regenerative braking as in claim 1 wherein the electric energy storage portion comprises a battery.
3. The vehicle engine stop/start system with regenerative braking as inn claim 1 further comprising:
a CAN controller;
a throttle position sensor detecting a throttle movement; and
the throttle position sensor sending a signal to the CAN controller whereby the main engine is automatically started upon receiving the throttle position sensor signal.
4. The vehicle engine stop/start system with regenerative braking as in claim 1 further comprising:
a CAN controller;
a brake position sensor detecting a brake position;
the brake position sensor sending a signal to the CAN controller whereby the main engine is automatically started upon receiving the brake sensor signal.
5. The vehicle engine stop/start system with regenerative braking as in claim 1 further comprising:
a CAN controller;
a transmission status sensor;
the transmission status sensor sending a signal to the CAN controller whereby the main engine is automatically started upon receiving the transmission status signal.
6. The vehicle engine stop/start system with regenerative braking as in claim 1 further comprising an auxiliary power unit engaged with the accessory belt drive belt.
7. The vehicle engine stop/start system with regenerative braking as in claim 1 further comprising an operator activated switch for selecting a start-stop operating mode.