Control module
First Claim
1. A control system comprising:
- an electronic driver circuit;
a first parallel circuit including a first load and a first low side MOSFET connected in series therewith, said first low side MOSFET being selectively energizable to actuate said first load, said first low side MOSFET being connected to circuit ground potential, said first parallel circuit being connected in parallel with said electronic driver circuit;
a second parallel circuit operatively coupled to the driver circuit, the second circuit including a second load and a second low side MOSFET connected in series therewith, said second low side MOSFET being selectively energizable to actuate said second load, said second low side MOSFET being connected to circuit ground potential, said second parallel circuit being connected in parallel with said electronic driver circuit;
wherein said electronic driver circuit is energized in conjunction with independently energizing either said first low side MOSFET to energize said first load, or said second low side MOSFET to energize said second load.
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0 Petitions
Accused Products
Abstract
An electronic control system 310 is provided for independent actuation of a plurality of hydraulic actuators 38, 39. The electronic control system 310 employs an electronic driver 314 connected to a first parallel circuit or first low side driver 316, and a second parallel circuit or second low side driver 330. Each parallel circuit 316, 330 contains a first and a second actuator L1, L2, respectively, connected in series to a first and a second low side MOSFET Q9 and Q10, respectively. Pulse width modulation of the electronic driver 314 in conjunction with selective actuation of either low side driver 316, 330 results in rapid response to system control algorithms whereby each actuator L1 or L2 may be de-activated in a relatively quick manner thereby improving vehicular control.
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Citations
18 Claims
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1. A control system comprising:
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an electronic driver circuit;
a first parallel circuit including a first load and a first low side MOSFET connected in series therewith, said first low side MOSFET being selectively energizable to actuate said first load, said first low side MOSFET being connected to circuit ground potential, said first parallel circuit being connected in parallel with said electronic driver circuit;
a second parallel circuit operatively coupled to the driver circuit, the second circuit including a second load and a second low side MOSFET connected in series therewith, said second low side MOSFET being selectively energizable to actuate said second load, said second low side MOSFET being connected to circuit ground potential, said second parallel circuit being connected in parallel with said electronic driver circuit;
wherein said electronic driver circuit is energized in conjunction with independently energizing either said first low side MOSFET to energize said first load, or said second low side MOSFET to energize said second load. - View Dependent Claims (2, 3, 6, 7, 8, 9)
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- 4. The control system of claim I further comprising a first diode connected in parallel with said first low side MOSFET, said first diode being biased so as to prevent current flow therethrough when said first low side MOSFET is energized, said first diode being connected to circuit ground potential to enable discharge of the first circuit through the first diode upon de-actuation of said first low side MOSFET.
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10. A control system comprising:
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an electronic driver circuit;
a first parallel circuit operatively coupled to the driver circuit, the first circuit including a first load and a first low side MOSFET connected in series therewith, said first low side MOSFET being selectively energizable to actuate said first load, said first low side MOSFET being connected to circuit ground potential, said first parallel circuit being connected in parallel with said electronic driver;
a second parallel circuit operatively coupled to the driver circuit, the second circuit including a second load and a second low side MOSFET connected in series therewith, said second low side MOSFET being selectively energizable to actuate said second load, said second low side MOSFET being connected to circuit ground potential, said second parallel circuit being connected in parallel with said electronic driver;
a first diode connected in parallel with said first low side MOSFET, said first diode being biased so as to prevent current flow therethrough when said first low side MOSFET is energized, said first diode being connected to circuit ground potential to enable discharge of the first circuit through the first diode upon de-actuation of said first low side MOSFET;
a second diode connected in parallel with said second low side MOSFET said first diode being biased so as to prevent current flow therethrough when said second low side MOSFET is energized, said second diode being connected to circuit ground potential to enable discharge of the second circuit through the second diode upon de-actuation of said second low side MOSFET, wherein said electronic driver circuit is energized in conjunction with independently energizing either said first low side MOSFET to energize said first load, or said second low side MOSFET to energize said second load.
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11. A method of activating at least one of a plurality of actuators comprising the steps of:
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providing an electronic driver circuit;
connecting a first parallel circuit to the electronic driver circuit, the first parallel circuit containing a first actuator in series with a first low side MOSFET, said low side MOSFET connected to circuit ground potential;
connecting a second parallel circuit to the electronic driver circuit, the second parallel circuit containing a second actuator in series with a second low side MOSFET, said second low side MOSFET connected to circuit ground potential;
connecting a first diode in parallel to the first low side MOSFET, the first diode connected to circuit ground potential at its anode, and its cathode connected to the drain of the first low side MOSFET;
connecting a second diode in parallel to the second low side MOSFET, the second diode connected to circuit ground potential at its anode, and its cathode connected to the drain of the second low side MOSFET;
energizing the electronic driver circuit; and
energizing at least one of the first parallel and second parallel circuits by energizing at least one of the first and second low side MOSFETs, respectively. - View Dependent Claims (12, 13, 14, 15)
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16. A control system comprising an electronic module, said module comprising:
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an electronic driver circuit;
a first parallel circuit connected in parallel to said electronic driver circuit, said first parallel circuit comprising a first low side MOSFET and a first actuator connected in series with said first low side MOSFET, wherein said first low side MOSFET contains a first source, a first gate, and a first drain, said first source connected to circuit ground potential, said first gate connected to a first input, and said first drain connected to said first actuator, said first low side MOSFET selectively energizable to actuate said first actuator;
a second parallel circuit connected in parallel to said electronic driver, said second parallel circuit a second low side MOSFET and a second actuator connected in series with said second low side MOSFET, wherein said second low side MOSFET contains a second source, a second gate, and a second drain, said second source connected to circuit ground potential, said second gate connected to a second input, and said second drain connected to said second actuator, said second low side MOSFET being selectively energizable to actuate said second actuator;
a first diode in parallel with said first low side MOSFET biased to prevent flow therethrough during actuation of said first low side MOSFET; and
a second diode in parallel with said second low side MOSFET biased to prevent flow therethrough during actuation of said second low side MOSFET, wherein said electronic driver is energized in conjunction with independently energizing either said first low side MOSFET or said second low side MOSFET. - View Dependent Claims (17, 18)
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Specification