Patents Assigned to C. E. Niehoff & Co.
  • Patent number: 8823208
    Abstract: 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: Grant
    Filed: November 16, 2011
    Date of Patent: September 2, 2014
    Assignee: C. E. Niehoff & Co.
    Inventor: Stoyan Borissov Bekiarov
  • Patent number: 8283797
    Abstract: 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: Grant
    Filed: April 16, 2009
    Date of Patent: October 9, 2012
    Assignee: C. E. Niehoff & Co.
    Inventor: James Becker
  • Patent number: 7944186
    Abstract: 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: Grant
    Filed: November 20, 2009
    Date of Patent: May 17, 2011
    Assignee: C. E. Niehoff & Co.
    Inventors: Issam Jabaji, Shadi Jabaji
  • Patent number: 7944185
    Abstract: 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: Grant
    Filed: November 20, 2009
    Date of Patent: May 17, 2011
    Assignee: C. E. Niehoff & Co.
    Inventors: Issam Jabaji, Shadi Jabaji
  • Patent number: 7812574
    Abstract: 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: Grant
    Filed: April 21, 2009
    Date of Patent: October 12, 2010
    Assignee: C. E. Niehoff & Co.
    Inventor: James Becker
  • Patent number: 7804181
    Abstract: 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: Grant
    Filed: April 23, 2009
    Date of Patent: September 28, 2010
    Assignee: C. E. Niehoff & Co.
    Inventor: James Becker
  • Patent number: 7750489
    Abstract: 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: Grant
    Filed: April 17, 2009
    Date of Patent: July 6, 2010
    Assignee: C. E. Niehoff & Co.
    Inventor: James Becker
  • Patent number: 7692413
    Abstract: 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: Grant
    Filed: August 18, 2008
    Date of Patent: April 6, 2010
    Assignee: C. E. Niehoff & Co.
    Inventors: Issam Jabaji, Shadi Jabaji
  • Patent number: 7688040
    Abstract: 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: Grant
    Filed: August 7, 2009
    Date of Patent: March 30, 2010
    Assignee: C. E. Niehoff & Co.
    Inventors: Nisvet Basic, Ciaran Patterson, Mahmood Pourkermani
  • Patent number: 7688039
    Abstract: 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: Grant
    Filed: August 7, 2009
    Date of Patent: March 30, 2010
    Assignee: C. E. Niehoff & Co.
    Inventors: Nisvet Basic, Ciaran Patterson, Mahmood Pourkermani
  • Patent number: 7605494
    Abstract: 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: Grant
    Filed: February 26, 2007
    Date of Patent: October 20, 2009
    Assignee: C. E. Niehoff & Co.
    Inventors: Shadi Jabaji, Issam Jabaji
  • Patent number: 7397224
    Abstract: 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: Grant
    Filed: August 20, 2007
    Date of Patent: July 8, 2008
    Assignee: C. E. Niehoff & Co.
    Inventor: Issam Jabaji
  • Patent number: 7397147
    Abstract: 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: Grant
    Filed: February 20, 2007
    Date of Patent: July 8, 2008
    Assignee: C. E. Niehoff & Co.
    Inventors: Shadi Jabaji, Issam Jabaji
  • Patent number: D563871
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: March 11, 2008
    Assignee: C. E. Niehoff & Co.
    Inventors: James Becker, Majid Naghshineh
  • Patent number: D571291
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: June 17, 2008
    Assignee: C. E. Niehoff & Co.
    Inventor: Issam Jabaji
  • Patent number: D574325
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: August 5, 2008
    Assignee: C. E. Niehoff & Co.
    Inventor: Majid Naghshineh
  • Patent number: D587194
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: February 24, 2009
    Assignee: C. E. Niehoff & Co.
    Inventor: Mahmood Pourkermani
  • Patent number: D618170
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: June 22, 2010
    Assignee: C. E. Niehoff & Co.
    Inventor: Gerald Miller
  • Patent number: D650332
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: December 13, 2011
    Assignee: C. E. Niehoff & Co.
    Inventors: Mahmood Pourkermani, Nisvet Basic, Majid Naghshineh
  • Patent number: D680073
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: April 16, 2013
    Assignee: C. E. Niehoff & Co.
    Inventors: Stoyan Borissov Bekiarov, Majid Naghshineh