Patents Assigned to C. E. Niehoff & Co.
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Patent number: 8823208Abstract: A vehicle electrical system comprises a generator, voltage regulator, switch module, and control device. The generator includes a field coil and one or more stator windings coupled together via the switch module. The generator provides electrical current to one or more electrical loads. The voltage regulator maintains the generator output voltage at a constant voltage by varying the field current. The switch module may include low-power transistors. The control device monitors the field current, output voltage and stator current and applies control signals to the switch module to improve transient recovery due to sudden variations in the electrical load and increase system efficiency during normal operation.Type: GrantFiled: November 16, 2011Date of Patent: September 2, 2014Assignee: C. E. Niehoff & Co.Inventor: Stoyan Borissov Bekiarov
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Patent number: 8283797Abstract: This invention discloses a power control system comprising a prime mover and a generator driven by the prime mover. A control device is coupled with the generator to ascertain a change in speed of the generator and vary an output power of the generator according to the change. The control device applies a signal to reduce the generator output power and another signal to restore the generator output power. The power control system may include a transmission, a speed converter, and/or an accessory.Type: GrantFiled: April 16, 2009Date of Patent: October 9, 2012Assignee: C. E. Niehoff & Co.Inventor: James Becker
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Patent number: 7944186Abstract: A power control system comprises a prime mover and a generator driven by the prime mover. A control device is coupled with the prime mover and the generator wherein the control device ascertains a power level of the generator and varies an output power of the prime mover according to the power level. The control device measures a duty cycle of a generator output power controller to ascertain the generator power level and generates a signal to a prime mover controller so that the generator duty cycle remains within a pre-determined range. The power control system may include a transmission wherein the control device operation maybe conditioned on a state of the transmission. The power control system may include a speed converter coupled with the prime mover wherein the control device converts a speed of the prime mover according to the generator power level. The control device may operate to control an output power of the generator concurrently with controlling the output power of the prime mover.Type: GrantFiled: November 20, 2009Date of Patent: May 17, 2011Assignee: C. E. Niehoff & Co.Inventors: Issam Jabaji, Shadi Jabaji
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Patent number: 7944185Abstract: A power control system comprises a prime mover and a generator driven by the prime mover. A control device is coupled with the prime mover and the generator wherein the control device ascertains a power level of the generator and varies an output power of the prime mover according to the power level. The control device measures a duty cycle of a generator output power controller to ascertain the generator power level and generates a signal to a prime mover controller so that the generator duty cycle remains within a pre-determined range. The power control system may include a transmission wherein the control device operation maybe conditioned on a state of the transmission. The power control system may include a speed converter coupled with the prime mover wherein the control device converts a speed of the prime mover according to the generator power level. The control device may operate to control an output power of the generator concurrently with controlling the output power of the prime mover.Type: GrantFiled: November 20, 2009Date of Patent: May 17, 2011Assignee: C. E. Niehoff & Co.Inventors: Issam Jabaji, Shadi Jabaji
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Patent number: 7812574Abstract: This invention discloses a power control system comprising a prime mover and a generator driven by the prime mover. A control device is coupled with the generator to ascertain a change in speed of the generator and vary an output power of the generator according to the change. The control device applies a signal to reduce the generator output power and another signal to restore the generator output power. The power control system may include a transmission, a speed converter, and/or an accessory.Type: GrantFiled: April 21, 2009Date of Patent: October 12, 2010Assignee: C. E. Niehoff & Co.Inventor: James Becker
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Patent number: 7804181Abstract: This invention discloses a power control system comprising a prime mover and a generator driven by the prime mover. A control device is coupled with the generator to ascertain a change in speed of the generator and vary an output power of the generator according to the change. The control device applies a signal to reduce the generator output power and another signal to restore the generator output power. The power control system may include a transmission, a speed converter, and/or an accessory.Type: GrantFiled: April 23, 2009Date of Patent: September 28, 2010Assignee: C. E. Niehoff & Co.Inventor: James Becker
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Patent number: 7750489Abstract: This invention discloses a power control system comprising a prime mover and a generator driven by the prime mover. A control device is coupled with the generator to ascertain a change in speed of the generator and vary an output power of the generator according to the change. The control device applies a signal to reduce the generator output power and another signal to restore the generator output power. The power control system may include a transmission, a speed converter, and/or an accessory.Type: GrantFiled: April 17, 2009Date of Patent: July 6, 2010Assignee: C. E. Niehoff & Co.Inventor: James Becker
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Patent number: 7692413Abstract: A power control system comprises a prime mover and a generator driven by the prime mover. A control device is coupled with the prime mover and the generator wherein the control device ascertains a power level of the generator and varies an output power of the prime mover according to the power level. The control device measures a duty cycle of a generator output power controller to ascertain the generator power level and generates a signal to a prime mover controller so that the generator duty cycle remains within a pre-determined range. The power control system may include a transmission wherein the control device operation may be conditioned on a state of the transmission. The power control system may include a speed converter coupled with the prime mover wherein the control device converts a speed of the prime mover according to the generator power level. The control device may operate to control an output power of the generator concurrently with controlling the output power of the prime mover.Type: GrantFiled: August 18, 2008Date of Patent: April 6, 2010Assignee: C. E. Niehoff & Co.Inventors: Issam Jabaji, Shadi Jabaji
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Patent number: 7688040Abstract: A control device measures a voltage drop across a conductor in a generator to determine and control the total generator output current. A temperature of the conductor is also measured to improve the accuracy. The control device may further improve on the accuracy by compensating for the electrical current through a field coil that may power the generator. The control device may be used in combination with a generator in a vehicle electrical system. Other system parameters may be monitored to improve on the system monitoring, diagnostics, and control. The generator may include a conductor comprising a process-controlled geometric shape.Type: GrantFiled: August 7, 2009Date of Patent: March 30, 2010Assignee: C. E. Niehoff & Co.Inventors: Nisvet Basic, Ciaran Patterson, Mahmood Pourkermani
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Patent number: 7688039Abstract: A control device measures a voltage drop across a conductor in a generator to determine and control the total generator output current. A temperature of the conductor is also measured to improve the accuracy. The control device may further improve on the accuracy by compensating for the electrical current through a field coil that may power the generator. The control device may be used in combination with a generator in a vehicle electrical system. Other system parameters may be monitored to improve on the system monitoring, diagnostics, and control. The generator may include a conductor comprising a process-controlled geometric shape.Type: GrantFiled: August 7, 2009Date of Patent: March 30, 2010Assignee: C. E. Niehoff & Co.Inventors: Nisvet Basic, Ciaran Patterson, Mahmood Pourkermani
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Patent number: 7605494Abstract: This invention discloses a device in a vehicle electrical system which determines the vehicle's operating conditions and facilitates the transfer of electrical energy between systems of electrical energy sources and their associated electrical loads based on the vehicle operating conditions. The device further determines the operating conditions of the systems of electrical energy sources and their associated electrical loads and facilitates the transfer of electrical energy between them in accordance with said operating conditions.Type: GrantFiled: February 26, 2007Date of Patent: October 20, 2009Assignee: C. E. Niehoff & Co.Inventors: Shadi Jabaji, Issam Jabaji
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Patent number: 7397224Abstract: This invention discloses a vehicle electrical system voltage regulator with improved electrical protection and warning means that discerns and responds to regulator, generator, or vehicle electrical system operation and malfunctions. The regulator includes monitoring, control, and protection circuits with a phase signal monitor, a field switching circuit that operates the field coil in response to electrical power demands, and a field enable switch in series with the field regulating switch. The phase monitor and protection circuit ascertains and transmits generator rotational motion for use by the monitoring and control circuit in discerning the various operating conditions. The monitoring and control circuit operates on the field switching circuit to meet the electrical power demands and provide multi level fault protection to include field switching circuit reconfiguration to continue operating under various fault conditions.Type: GrantFiled: August 20, 2007Date of Patent: July 8, 2008Assignee: C. E. Niehoff & Co.Inventor: Issam Jabaji
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Patent number: 7397147Abstract: This invention discloses a device in a vehicle electrical system which determines the vehicle's operating conditions and facilitates the transfer of electrical energy between systems of electrical energy sources and their associated electrical loads based on the vehicle operating conditions. The device further determines the operating conditions of the systems of electrical energy sources and their associated electrical loads and facilitates the transfer of electrical energy between them in accordance with said operating conditions.Type: GrantFiled: February 20, 2007Date of Patent: July 8, 2008Assignee: C. E. Niehoff & Co.Inventors: Shadi Jabaji, Issam Jabaji
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Patent number: D563871Type: GrantFiled: December 1, 2006Date of Patent: March 11, 2008Assignee: C. E. Niehoff & Co.Inventors: James Becker, Majid Naghshineh
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Patent number: D571291Type: GrantFiled: June 29, 2007Date of Patent: June 17, 2008Assignee: C. E. Niehoff & Co.Inventor: Issam Jabaji
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Patent number: D574325Type: GrantFiled: August 9, 2006Date of Patent: August 5, 2008Assignee: C. E. Niehoff & Co.Inventor: Majid Naghshineh
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Patent number: D587194Type: GrantFiled: May 8, 2008Date of Patent: February 24, 2009Assignee: C. E. Niehoff & Co.Inventor: Mahmood Pourkermani
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Patent number: D618170Type: GrantFiled: October 29, 2009Date of Patent: June 22, 2010Assignee: C. E. Niehoff & Co.Inventor: Gerald Miller
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Patent number: D650332Type: GrantFiled: September 9, 2010Date of Patent: December 13, 2011Assignee: C. E. Niehoff & Co.Inventors: Mahmood Pourkermani, Nisvet Basic, Majid Naghshineh
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Patent number: D680073Type: GrantFiled: May 17, 2012Date of Patent: April 16, 2013Assignee: C. E. Niehoff & Co.Inventors: Stoyan Borissov Bekiarov, Majid Naghshineh