1. A passenger cabin environmental protection system for a vehicle, the passenger protection system comprising:
a carbon dioxide sensor for generating a carbon dioxide signal;
a cabin temperature sensor for generating a temperature signal; and
a controller in electrical communication with the carbon dioxide sensor and the temperature sensor, the controller being configured to initiate a safety precaution based on the carbon dioxide signal and the temperature signal;
a motion sensor for generating a motion signal;
wherein the controller is configured to determine a person is located in the vehicle based on the carbon dioxide signal and the motion signal;
wherein the controller is configured to initiate a plurality of safely precautions, each safety precaution being initiated based on one of a plurality of predetermined temperature thresholds.
2. The passenger cabin environmental protection system according to claim 1, wherein the controller is configured to initiate the safety precaution when the temperature signal exceeds a predefined threshold.
3. The passenger cabin environmental protection system according to claim 2, wherein the controller is in electrical communication with a window actuator and the safety precaution includes controlling the window actuator.
4. The passenger cabin environmental protection system according to claim 2, wherein the controller is in electrical communication with a door lock actuator and the safety precaution includes controlling the door lock actuator.
5. The passenger cabin environmental protection system according to claim 2, wherein the controller is in electrical communication with a horn actuator and the safety precaution includes controlling the horn actuator.
6. The passenger cabin environmental protection system according to claim 2, wherein the controller is in electrical communication with a key communication device and the safety precaution includes controlling the key communication device.
7. The passenger cabin environmental protection system according to claim 2, wherein the controller is in electrical communication with a mobile communication system and the safety precaution include controlling the mobile communication system.
8. The passenger cabin environmental protection system according to claim 1, further comprising an external temperature sensor, the external temperature sensor being in electrical communication with the controller to verify a dangerous environmental condition exists.
9. A passenger cabin environmental protection system for a vehicle having a vehicle cabin, the passenger protection system comprising:
a first sensor to generate a first signal indicative of a person being present in the vehicle;
a second sensor to generate a second signal indicative of a dangerous environmental condition; and
a controller in electrical communication with the first and second sensor, the controller configured to initiate a plurality of safety precautions, each safety precaution being initiated based on one of a plurality of predetermined temperature thresholds.
10. The passenger cabin environmental protection system according to claim 9, wherein the carbon dioxide sensor is located proximate a floor of the vehicle.
11. The passenger cabin environmental protection system according to claim 9, wherein the controller is in electrical communication with a window actuator and the safety precaution includes controlling the window actuator.
12. The passenger cabin environmental protection system according to claim 9, wherein the controller is in electrical communication with a door lock actuator and the safety precaution includes controlling the door lock actuator.
13. The passenger cabin environmental protection system according to claim 9, wherein the controller is in electrical communication with a horn actuator and the safety precaution includes controlling the horn actuator.
14. The passenger cabin environmental protection system according to claim 9, wherein the controller is in electrical communication with a key communication device and the safety precaution includes controlling the key communication device.
15. The passenger cabin environmental protection system according to claim 9, wherein the controller is in electrical communication with a mobile communication system and the safety precaution includes controlling the mobile communication system.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A starting circuit for a single-phase AC motor, the single-phase AC motor comprising a main winding (1) and a starting winding (6), said starting circuit comprising:
a detecting circuit (2);
a rectifying circuit (3);
a triggering circuit (4); and
a switch (5); wherein
said detecting circuit (2) is connected in series with said main winding (1);
said switch (5) is connected in series with said starting winding (6);
said detecting circuit (2) transfers current parameters of said main winding (1) into detecting signals;
said rectifying circuit (3) processes said detecting signals and transmits said detecting signals to said triggering circuit (4);
said triggering circuit (4) controls said switch (5) according to said detecting signals whereby controlling power-on and power-off of said starting winding (6); and
said triggering circuit (4) is a hysteresis comparing circuit.
2. The starting circuit for a single-phase AC motor of claim 1, wherein an optical coupling circuit is connected to said triggering circuit (4).
3. The starting circuit for a single-phase AC motor of claim 2, wherein said optical coupling circuit operates to drive said switch (5).
4. The starting circuit for a single-phase AC motor of claim 1, wherein said switch is a bidirectional thyristor.
5. The starting circuit for a single-phase AC motor of claim 1, wherein said rectifying circuit (3) transmits said detecting signals to an input end of said triggering circuit (4).
6. A method for starting a single-phase AC motor, comprising providing a starting circuit of claim 1;
determining a first critical speed corresponding to switch-off of said switch, a first voltage of said switch corresponding to said first critical speed, a second critical speed corresponding to switch-on of said switch, and a second voltage of said switch corresponding to said second critical speed by said hysteresis comparing circuit;
detecting an operating current of said main winding by said detecting circuit;
transforming said operating current into a voltage signal and inputting said voltage signal to an input pin of said hysteresis comparing circuit by said detecting circuit; and
controlling said starting winding to operate according to a rotation speed of said single-phase AC motor by said hysteresis comparing circuit.
7. The method of claim 6, wherein the step of controlling said starting winding to operate according to a rotation speed of said single-phase AC motor by said hysteresis comparing circuit comprises:
controlling said switch to switch on as a rotation speed of said single-phase AC motor arises from zero and said voltage signal is greater than said first voltage;
controlling said switch to switch off as a rotation speed of said single-phase AC motor is equal to or greater than said first critical speed and said voltage signal is less than said second voltage; and
controlling said switch to switch on as a rotation speed of said single-phase AC motor is less than or equal to said second critical speed and said voltage signal is greater than said first voltage.
8. A method for starting a single-phase AC motor, comprising:
providing a starting circuit of claim 1;
determining a first critical speed corresponding to switch-off of said switch, a first voltage of said switch corresponding to said first critical speed, a second critical speed corresponding to switch-on of said switch, and a second voltage of said switch corresponding to said second critical speed by said microprocessor unit;
detecting an operating current of said main winding by said detecting circuit;
transforming said operating current into a voltage signal and inputting said voltage signal to an input pin of said microprocessor unit by said detecting circuit; and
controlling said starting winding to operate according to a rotation speed of said single-phase AC motor by said microprocessor unit.
9. The method of claim 6, wherein the step of controlling said starting winding to operate according to a rotation speed of said single-phase AC motor by said microprocessor unit comprises:
controlling said switch to switch on as a rotation speed of said single-phase AC motor arises from zero and said voltage signal is greater than said first voltage;
controlling said switch to switch off as a rotation speed of said single-phase AC motor is equal to or greater than said first critical speed and said voltage signal is less than said second voltage; and
controlling said switch to switch on as a rotation speed of said single-phase AC motor is less than or equal to said second critical speed and said voltage signal is greater than said first voltage.