Patents by Inventor Uday Deshpande
Uday Deshpande has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20140136035Abstract: A method of controlling transition of operating modes in a hybrid vehicle includes the steps of providing a vehicle system having a generator coupled to an inverter and a motor coupled to an inverter. A switch box is disposed therebetween. The switch box includes a plurality of electrical switches that open and close to allow for direct electrical connection between the generator and the motor. The method detects a transfer condition using the vehicle system controller to transition from a first operating mode to a second operating mode. The transfer condition defines a predetermined efficiency threshold of the second operating mode being more efficient than the first operating mode. The method further preconditions the vehicle system by synchronizing electrical features between the generator and the motor. The method then actuates the switch box to close the plurality of switches allowing the generator and motor to electrically couple.Type: ApplicationFiled: May 24, 2013Publication date: May 15, 2014Inventors: Paul BOSKOVITCH, J. Axel RADERMACHER, Uday DESHPANDE, Michael GROENE
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Publication number: 20120186391Abstract: A system of electric power management for a hybrid vehicle includes an engine, a first inverter, a first electric machine coupled to the engine and the first inverter, and a first transmission coupled between the engine and the first electric machine. The first transmission has a transmission speed ratio operable such that the first electric machine operating speed operates independent of an engine operating speed. A second electric machine is coupled to the second inverter and a wheel axle of the vehicle. A high voltage battery is coupled to both the first inverter and the second inverter. A switch box is disposed between the first electric machine and the second electric machine. The switch box includes switches adapted to switch open and closed to allow direct electrical connection from the first electric machine to the second electric machine.Type: ApplicationFiled: December 23, 2011Publication date: July 26, 2012Inventors: Paul BOSKOVITCH, J. Axel Radermacher, Uday Deshpande, Michael Groene
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Patent number: 7681659Abstract: A control system is provided for use in a power tool. The control system includes: a rotational rate sensor having a resonating mass and a controller electrically connected to the rotational rate sensor. The rotational rate sensor detects lateral displacement of the resonating mass and generates a signal indicative of the detected lateral displacement, such that the lateral displacement is directly proportional to a rotational speed at which the power tool rotates about an axis of the rotary shaft. Based on the generated signal, the controller initiates a protective operation to avoid further undesirable rotation of the power tool. The controller may opt to reduce the torque applied to shaft to a non-zero value that enables the operator to regain control of the tool.Type: GrantFiled: January 14, 2008Date of Patent: March 23, 2010Assignee: Black & Decker Inc.Inventors: Qiang Zhang, Uday Deshpande, John Charles Vanko, Jason Lee, Craig Schell, Thomas Jay Bodine, Joao Norona, David Beers
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Patent number: 7552781Abstract: A control system is provided for use in a power tool. The control system includes: a rotational rate sensor having a resonating mass and a controller electrically connected to the rotational rate sensor. The rotational rate sensor detects lateral displacement of the resonating mass and generates a signal indicative of the detected lateral displacement, such that the lateral displacement is directly proportional to a rotational speed at which the power tool rotates about an axis of the rotary shaft. Based on the generated signal, the controller initiates a protective operation to avoid further undesirable rotation of the power tool. The controller may opt to reduce the torque applied to shaft to a non-zero value that enables the operator to regain control of the tool.Type: GrantFiled: September 12, 2006Date of Patent: June 30, 2009Assignee: Black & Decker Inc.Inventors: Qiang Zhang, Uday Deshpande, John Charles Vanko, Jason Leh, Craig Schell, Thomas Jay Bodine, Joao Norona, David Beers
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Patent number: 7410006Abstract: A control system is provided for use in a power tool. The control system includes: a rotational rate sensor having a resonating mass and a controller electrically connected to the rotational rate sensor. The rotational rate sensor detects lateral displacement of the resonating mass and generates a signal indicative of the detected lateral displacement, such that the lateral displacement is directly proportional to a rotational speed at which the power tool rotates about an axis of the rotary shaft. Based on the generated signal, the controller initiates a protective operation to avoid further undesirable rotation of the power tool. The control scheme employed by the power tool may initiate different protective operations for different tool conditions.Type: GrantFiled: October 19, 2005Date of Patent: August 12, 2008Assignee: Black & Decker Inc.Inventors: Qiang Zhang, Uday Deshpande, Shailesh P. Waikar, Daniel Puzio, Craig Schell, William F. Hilsher, Joshua D. West
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Publication number: 20080110653Abstract: A control system is provided for use in a power tool. The control system includes: a rotational rate sensor having a resonating mass and a controller electrically connected to the rotational rate sensor. The rotational rate sensor detects lateral displacement of the resonating mass and generates a signal indicative of the detected lateral displacement, such that the lateral displacement is directly proportional to a rotational speed at which the power tool rotates about an axis of the rotary shaft. Based on the generated signal, the controller initiates a protective operation to avoid further undesirable rotation of the power tool. The controller may opt to reduce the torque applied to shaft to a non-zero value that enables the operator to regain control of the tool.Type: ApplicationFiled: January 14, 2008Publication date: May 15, 2008Inventors: Qiang Zhang, Uday Deshpande, John Vanko, Jason Leh, Craig Schell, Thomas Bodine, Joao Norona, David Beers
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Publication number: 20070287365Abstract: A power tool in accordance with an embodiment of the invention has a motor driving a member, a switch coupled across windings of the motor that dynamically brakes the motor, and a mechanical brake that brakes speed of the member. In an aspect, the combined dynamic and mechanical braking brakes speed of the member to a desired speed in no more than about two second. In an aspect, the motor is an electronically commutated motor and the power tool includes a controller that electronically commutates the motor by switching switches that switch power to the motor in an electronic commutation sequence and switches the switches to electronically brake the motor.Type: ApplicationFiled: May 2, 2007Publication date: December 13, 2007Applicant: Black & Decker Inc.Inventors: Uday Deshpande, Bhanuprasad Gorti, Jason Melvin, Gregory Rice, David Wikle, Shailesh Waikar, William Hilsher
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Publication number: 20070210733Abstract: A power tool having an electronically commutated DC motor capable of providing various operating modes ranging from a maximum efficiency operating mode to a maximum power operating mode. The motor has a rotor having permanent magnets mounted in recesses in a back iron of the rotor. In one embodiment the motor has three phase windings, each having at least a pair of coils. The phase windings are connected in either a delta or a wye configuration via electromechancial or electronic switching components, or a combination of both, by a controller within the tool. The coils in each phase winding can also be switched between series and parallel configurations to configure the motor to provide its various operating modes. In one embodiment a dual wound motor is disclosed that has its phase coils dynamically or statically switchable between series and parallel configurations.Type: ApplicationFiled: February 19, 2007Publication date: September 13, 2007Inventors: Hung Du, Uday Deshpande, Joshua West, Bhanuprasad Gorti, Shailesh Waikar
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Publication number: 20070207703Abstract: A hand held orbital sander has a housing having an electronically commutated motor disposed therein and an orbit mechanism disposed beneath the housing. A motor controller is coupled to the motor. The motor controller changes the speed of at which it runs the motor from an idle speed to a sanding speed upon the motor speed dropping from idle speed to an idle speed threshold value and changes the speed at which it runs the motor from sanding speed to idle speed upon the motor speed increasing from sanding speed to a sanding speed threshold value. The sander may have a mechanical brake that brakes the orbit mechanism and the motor controller also dynamically brakes the motor.Type: ApplicationFiled: May 11, 2007Publication date: September 6, 2007Applicant: Black & Decker Inc.Inventors: Uday Deshpande, Bhanuprasad Gorti, Shailesh Waikar, William Hilsher
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Publication number: 20070084613Abstract: A control system is provided for use in a power tool. The control system includes: a rotational rate sensor having a resonating mass and a controller electrically connected to the rotational rate sensor. The rotational rate sensor detects lateral displacement of the resonating mass and generates a signal indicative of the detected lateral displacement, such that the lateral displacement is directly proportional to a rotational speed at which the power tool rotates about an axis of the rotary shaft. Based on the generated signal, the controller initiates a protective operation to avoid further undesirable rotation of the power tool. The controller may opt to reduce the torque applied to shaft to a non-zero value that enables the operator to regain control of the tool.Type: ApplicationFiled: September 12, 2006Publication date: April 19, 2007Inventors: Qiang Zhang, Uday Deshpande, John Vanko, Jason Leh, Craig Schell, Thomas Bodine, Joao Norona, David Beers
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Publication number: 20060081386Abstract: A control system is provided for use in a power tool. The control system includes: a rotational rate sensor having a resonating mass and a controller electrically connected to the rotational rate sensor. The rotational rate sensor detects lateral displacement of the resonating mass and generates a signal indicative of the detected lateral displacement, such that the lateral displacement is directly proportional to a rotational speed at which the power tool rotates about an axis of the rotary shaft. Based on the generated signal, the controller initiates a protective operation to avoid further undesirable rotation of the power tool. The control scheme employed by the power tool may initiate different protective operations for different tool conditions.Type: ApplicationFiled: October 19, 2005Publication date: April 20, 2006Inventors: Qiang Zhang, Uday Deshpande, Shailesh Waikar, Daniel Puzio, Craig Schell, William Hilsher, Joshua West
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Publication number: 20050245182Abstract: A power tool is a “low profile” power tool, that is the overall height of the power tool is sufficiently small that a user can grasp the top of the power tool with the user's hand and the hand will be positioned relative close to the bottom of the power tool compared with existing power tools. The low profile power tool uses a low profile motor having a diameter to lamination height ratio of at least 2:1. In an aspect of the invention, the motor is an electronically commutated “pancake” style motor. In an aspect of the invention, the power tool is a random orbital sander or an orbital sander having a motor that provides at least 40 watts of power. In an aspect of the invention, the sander has a mechanical brake that brakes the orbital mechanism and the motor is dynamically braked.Type: ApplicationFiled: April 12, 2005Publication date: November 3, 2005Inventors: Uday Deshpande, Bhanuprasad Gorti, Jason Melvin, Gregory Rice, David Wikle, Shailesh Waikar, William Hilsher
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Publication number: 20050245183Abstract: A hand held orbital sander has a housing having an electronically commutated motor disposed therein and an orbit mechanism disposed beneath the housing. A motor controller is coupled to the motor. The motor controller changes the speed of at which it runs the motor from an idle speed to a sanding speed upon the motor speed dropping from idle speed to an idle speed threshold value and changes the speed at which it runs the motor from sanding speed to idle speed upon the motor speed increasing from sanding speed to a sanding speed threshold value. The sander may have a mechanical brake that brakes the orbit mechanism and the motor controller also dynamically brakes the motor.Type: ApplicationFiled: April 12, 2005Publication date: November 3, 2005Inventors: Uday Deshpande, Bhanuprasad Gorti., Shailesh Waikar, William Hilsher
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Patent number: RE44311Abstract: A control system is provided for use in a power tool. The control system includes: a rotational rate sensor having a resonating mass and a controller electrically connected to the rotational rate sensor. The rotational rate sensor detects lateral displacement of the resonating mass and generates a signal indicative of the detected lateral displacement, such that the lateral displacement is directly proportional to a rotational speed at which the power tool rotates about an axis of the rotary shaft. Based on the generated signal, the controller initiates a protective operation to avoid further undesirable rotation of the power tool. The controller may opt to reduce the torque applied to shaft to a non-zero value that enables the operator to regain control of the tool.Type: GrantFiled: March 19, 2012Date of Patent: June 25, 2013Assignee: Black & Decker Inc.Inventors: Qiang Zhang, Uday Deshpande, John Charles Vanko, Jason Leh, Craig Schell, Thomas Jay Bodine, Joao Norona, David Beers
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Patent number: RE45112Abstract: A control system is provided for use in a power tool. The control system includes: a rotational rate sensor having a resonating mass and a controller electrically connected to the rotational rate sensor. The rotational rate sensor detects lateral displacement of the resonating mass and generates a signal indicative of the detected lateral displacement, such that the lateral displacement is directly proportional to a rotational speed at which the power tool rotates about an axis of the rotary shaft. Based on the generated signal, the controller initiates a protective operation to avoid further undesirable rotation of the power tool. The controller may opt to reduce the torque applied to shaft to a non-zero value that enables the operator to regain control of the tool.Type: GrantFiled: August 31, 2012Date of Patent: September 9, 2014Assignee: Black & Decker Inc.Inventors: Qiang Zhang, Uday Deshpande, John Charles Vanko, Jason Leh, Craig Schell, Thomas Jay Bodine, Joao Norona, David Beers