Patents Assigned to Silicon Valley Micro M Corporation
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Patent number: 8222789Abstract: A brushless D.C. disk motor has one or more disk rotor assemblies and pairs of stator assemblies for each rotor assembly. Each disk rotor assembly has a disk and a plurality of permanent magnets distributed along two or more circular paths in the disk inboard of the peripheral edge of the rotor. Each stator assembly has a plurality of pole pieces and coils distributed along a mounting plate in corresponding circular paths. The disk is rotatably mounted to a support member; while the stator sub-assemblies are fixed to the support member. The coils are selectively activated by commutated power control signals generated in response to a vehicle condition parameter, such as vehicle speed or disk motor load, to optimize power drain from the source of electrical power in accordance with the value of the vehicle condition parameter. The stator assembly pole pieces are movably mounted on the stator mounting plate to improve motor efficiency.Type: GrantFiled: November 25, 2009Date of Patent: July 17, 2012Assignee: Silicon Valley Micro M CorporationInventors: Shengbo Zhu, Su Shiong Huang
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Publication number: 20110121676Abstract: A brushless D.C. disk motor has one or more disk rotor assemblies and pairs of stator assemblies for each rotor assembly. Each disk rotor assembly has a disk and a plurality of permanent magnets distributed along two or more circular paths in the disk inboard of the peripheral edge of the rotor. Each stator assembly has a plurality of pole pieces and coils distributed along a mounting plate in corresponding circular paths. The disk is rotatably mounted to a support member; while the stator sub-assemblies are fixed to the support member. The coils are selectively activated by commutated power control signals generated in response to a vehicle condition parameter, such as vehicle speed or disk motor load, to optimize power drain from the source of electrical power in accordance with the value of the vehicle condition parameter. The stator assembly pole pieces are movably mounted on the stator mounting plate to improve motor efficiency.Type: ApplicationFiled: November 25, 2009Publication date: May 26, 2011Applicant: Silicon Valley Micro M CorporationInventors: Shengbo Zhu, Su Shiong Huang
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Publication number: 20110101901Abstract: A brushless D.C. disk motor has one or more disk rotor assemblies and pairs of stator assemblies for each rotor assembly. Each disk rotor assembly has a disk and a plurality of permanent magnets distributed along two or more circular paths in the disk inboard of the peripheral edge of the rotor. Each stator assembly has a plurality of pole pieces and coils distributed along a mounting plate in corresponding circular paths. The disk is rotatably mounted to a support member; while the stator sub-assemblies are fixed to the support member. The coils are selectively activated by commutated power control signals generated in response to a vehicle condition parameter, such as vehicle speed or disk motor load, to optimize power drain from the source of electrical power in accordance with the value of the vehicle condition parameter.Type: ApplicationFiled: October 30, 2009Publication date: May 5, 2011Applicant: Silicon Valley Micro M CorporationInventors: Shengbo Zhu, Su Shiong Huang
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Publication number: 20090224702Abstract: A brushless D.C. motor has a rotor with a plurality of magnets secured to a mounting surface. Each magnet has an RFID tag secured to a magnet surface, with each RFID tag having stored therein a unique identification character serving to identify the magnet. A stator has a plurality of pole teeth separated by slots, each pole tooth having a power coil wound thereabout. A plurality of RFID interrogation antennae are mounted adjacent the pole teeth. An RFID reader generates r.f. interrogation signals broadcast by the antennae to the RFID tags. The RFID tags respond by broadcasting the unique identification character whenever an interrogation signal is sensed as the tag enters the region of a pole tooth. This position and magnet identification information is received by the RFID reader, which processes the information and sends it to a motor controller and driver unit, which supplies operating power to the individual power coils.Type: ApplicationFiled: March 8, 2008Publication date: September 10, 2009Applicant: Silicon Valley Micro M CorporationInventors: Shengbo Zhu, Su Shiong Huang
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Publication number: 20060022552Abstract: A multi-phase A.C. vehicle motor having one or more disk rotor assemblies and pairs of stator sub-assemblies. Each disk rotor assembly has a disk and a plurality of permanent magnets distributed along one or more circular paths in the disk inboard of the peripheral edge of the rotor. Each stator sub-assembly has a corresponding number of pole pieces and coils distributed along a mounting plate in corresponding circular paths. The disk is rotatably mounted to a support member; while the stator sub-assemblies are fixed to the support member.Type: ApplicationFiled: July 28, 2004Publication date: February 2, 2006Applicant: Silicon Valley Micro M CorporationInventors: Shengbo Zhu, Su Huang