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公开(公告)号:US20240359674A1
公开(公告)日:2024-10-31
申请号:US18306403
申请日:2023-04-25
Applicant: ZF Active Safety US Inc.
Inventor: Blaise J. Ganzel
CPC classification number: B60T8/92 , B60T7/042 , B60T8/885 , B60T13/142 , B60T13/58 , B60T13/686 , B60T13/745 , F15B7/08 , B60T2220/04 , B60T2270/203 , B60T2270/402 , B60T2270/404 , B60T2270/82
Abstract: A brake system for actuating a plurality of wheel brakes in a normal non-failure braking mode and in a backup braking mode includes an MC-type power transmission unit having a first electric motor. An iso/dump control valve arrangement is associated with each wheel brake of the plurality of wheel brakes. A pump piston is associated with at least one wheel brake of the plurality of wheel brakes. The pump piston is driven by a second electric motor for selectively providing pressurized hydraulic fluid to the iso/dump control valve arrangement. At least one electric brake motor is operative to selectively drive a selected wheel brake. A first electronic control unit is operative to selectively control the first electric motor. A second electronic control unit is operative to selectively control the second electric motor. A third electronic control unit is operative to control the at least one electric brake motor.
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公开(公告)号:US20240190397A1
公开(公告)日:2024-06-13
申请号:US18076437
申请日:2022-12-07
Applicant: ZF Active Safety US Inc.
Inventor: Suat Ozsoylu , Blaise J. Ganzel
CPC classification number: B60T7/042 , B60T13/686 , B60T13/745 , B60T2270/402 , B60T2270/404
Abstract: A brake system includes a tandem power transmission unit selectively driven by a first electric motor to provide pressurized hydraulic fluid to primary and secondary output lines. A plurality of iso/dump control valve arrangements is provided, with each being associated with a selected wheel brake and selectively provides slip control to the selected wheel brake. A first traction control iso valve is hydraulically interposed between the tandem power transmission unit and at least a selected iso/dump control valve arrangement via the primary output line. A second traction control iso valve is hydraulically interposed between the tandem power transmission unit and at least an other iso/dump control valve arrangement via the secondary output line. A DAP power transmission unit is driven by a second electric motor for selectively providing pressurized hydraulic fluid to the iso/dump control valve arrangement of at least one associated wheel brake.
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公开(公告)号:US20230311833A1
公开(公告)日:2023-10-05
申请号:US17708153
申请日:2022-03-30
Applicant: ZF Active Safety US Inc.
Inventor: Blaise J. Ganzel
CPC classification number: B60T13/686 , B60T13/148 , B60T13/58 , B60T8/326 , B60T2270/403 , B60T2270/10 , B60T2270/82 , B60T2270/402 , B60T2270/404 , B60T7/042
Abstract: A brake system includes a source of pressurized hydraulic fluid, a plurality of wheel brakes, and an iso/dump control valve arrangement associated with at least one wheel brake. A reservoir is connected to the source of pressurized fluid and to the iso/dump control valve arrangement. A fast-replenishing circuit includes a FR iso valve, a venting valve, and a replenishing check valve. The venting and replenishing check valves are interposed between the source of pressurized fluid and the reservoir. The FR iso valve is interposed between the source of pressurized fluid and the iso/dump control valve arrangement. When the source of pressurized fluid reaches a predetermined stroke position, the FR iso valve is energized to restrict movement of fluid from at least one iso/dump control valve arrangement to the source of pressurized fluid. The source of pressurized fluid is re-stroked to draw fluid from the reservoir through the replenishing check valve.
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公开(公告)号:US20230048177A1
公开(公告)日:2023-02-16
申请号:US17400386
申请日:2021-08-12
Applicant: ZF Active Safety US Inc.
Inventor: Blaise J. Ganzel
Abstract: A brake system for hydraulically actuating a pair of front wheel brakes and a pair of rear wheel brakes includes a master cylinder fluidly connected to a reservoir and operable to provide a brake signal responsive to actuation of a brake pedal connected thereto. The master cylinder is selectively operable during a manual push-through mode by actuation of the brake pedal to generate brake actuating pressure at an output for hydraulically actuating a selected one of the pair of front and rear wheel brakes. A first power transmission unit is configured for actuating the selected one of the pair of front and rear wheel brakes. A second power transmission unit is configured for actuating the other one of the pair of front and rear wheel brakes. A first electronic control unit is provided for controlling at least one of the first and second power transmission units.
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公开(公告)号:US20240067144A1
公开(公告)日:2024-02-29
申请号:US18073622
申请日:2022-12-02
Applicant: ZF Active Safety US Inc.
Inventor: Blaise J. Ganzel
CPC classification number: B60T8/368 , B60T7/042 , B60T8/17 , B60T8/4081 , B60T17/043 , B60T8/4872
Abstract: A brake system for actuating front and rear wheel brakes includes a reservoir and a master cylinder operable during a manual push-through mode by actuation of a brake pedal to generate brake actuating pressure at a first output for hydraulically actuating the pair of front wheel brakes. A power transmission unit is configured for selectively providing pressurized hydraulic fluid for actuating the pair of front wheel brakes and the pair of rear wheel brakes during a braking event. First and second two-position three-way valves are provided. Each three-way valve is hydraulically connected with the master cylinder, the power transmission unit, and a selected one of the front wheel brakes. Each of the first and second three-way valves selectively controls hydraulic fluid flow from a chosen one of the master cylinder and the power transmission unit to the selected one of the pair of front wheel brakes.
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公开(公告)号:US20230047015A1
公开(公告)日:2023-02-16
申请号:US17400210
申请日:2021-08-12
Applicant: ZF Active Safety US Inc.
Inventor: Blaise J. Ganzel
Abstract: A fluid separator includes a separator housing defining a longitudinal bore having first and second bore ends. A first fluid passage is in fluid communication with the bore at the first bore end. A second fluid passage is in fluid communication with the bore adjacent the second bore end. A third fluid passage is in fluid communication with a portion of the bore spaced apart from both the first and second bore ends. A free-floating piston is located inside the bore and configured for longitudinal movement with respect to the bore responsive to fluid pressure within the bore. A biasing spring urges the piston toward the second bore end. An end cap is located at the second bore end. The end cap is maintained on the housing via at least two retainers.
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公开(公告)号:US12145549B2
公开(公告)日:2024-11-19
申请号:US17708048
申请日:2022-03-30
Applicant: ZF Active Safety US Inc.
Inventor: Blaise J. Ganzel
Abstract: An unloading valve is disclosed. A housing defines a primary and secondary pump inlets, and collective and bypass pump outlets. The housing defines a bypass seat. A tappet has first and second tappet ends longitudinally spaced by a tappet body. The tappet is configured for selective longitudinal reciprocal motion between first and second tappet positions. A tappet shoulder is located on an external surface of the tappet body for selective sealing engagement with the bypass seat to allow fluid flow in a bypass direction and resist fluid flow in a collection direction longitudinally opposite the bypass direction. The primary and secondary pump inlets are in fluid communication with the collective pump outlet for flow in the collection direction when the fluid pressure at the primary and secondary pump inlets combined is below a predetermined bypass pressure and the tappet is located in the first tappet position.
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公开(公告)号:US12139119B2
公开(公告)日:2024-11-12
申请号:US17489004
申请日:2021-09-29
Applicant: ZF Active Safety US Inc.
Inventor: Blaise J. Ganzel , Jeffrey E. Shaya
IPC: B60T17/22 , B60T1/06 , B60T13/14 , B60T13/58 , B60T13/68 , F16D55/226 , F16D65/74 , F16D66/02 , B60T7/04 , B60T7/12 , F16D121/04 , F16D125/08 , F16D125/10
Abstract: A hydraulic brake wear detection apparatus and a method for detecting a degree of pad wear of a brake pad of a hydraulic brake includes a caliper piston located at least partially within a caliper cavity and attached to the brake pad. The caliper piston includes a piston cavity extending from a caliper piston rim into a caliper piston body at a location longitudinally opposite, and spaced from, the brake pad. An internal piston is located at least partially within the piston cavity and is entirely enclosed in an internal space defined cooperatively by the piston cavity and the caliper cavity for reciprocal longitudinal motion with respect to the internal space. The internal piston is reciprocated by a predetermined volume of pressurized hydraulic fluid responsive to wear of the brake pad.
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公开(公告)号:US12115963B2
公开(公告)日:2024-10-15
申请号:US17400250
申请日:2021-08-12
Applicant: ZF Active Safety US Inc.
Inventor: Blaise J. Ganzel
CPC classification number: B60T8/94 , B60T8/176 , B60T13/142 , B60T13/58 , B60T13/62 , B60T13/686 , B60T15/028 , B60T8/4081 , B60T2270/10 , B60T2270/402 , B60T2270/404 , B60T2270/82
Abstract: A brake system includes a reservoir and a master cylinder operable to provide a brake signal responsive to actuation of a brake pedal connected thereto. The master cylinder is selectively operable to generate brake actuating pressure at an output for hydraulically actuating a pair of hydraulically actuated wheel brakes in a manual push-through operation. A power transmission unit is configured to selectively generate pressurized hydraulic fluid for actuating the pair of hydraulically actuated wheel brakes. First and second two-position three-way valves are hydraulically connected to respective ones of the pair of hydraulically operated brakes and to both the master cylinder and the power transmission unit. The first and second three-way valves each are configured to selectively switch the respective hydraulically operated brake to receive fluid from a selected one of the master cylinder, in a backup braking mode, and the power transmission unit, in a normal non-failure braking mode.
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公开(公告)号:US12115960B2
公开(公告)日:2024-10-15
申请号:US17551577
申请日:2021-12-15
Applicant: ZF Active Safety US Inc.
Inventor: Blaise J. Ganzel
IPC: B60T8/17 , B60T7/04 , B60T8/32 , B60T8/34 , B60T8/36 , B60T8/40 , B60T8/88 , B60T8/92 , B60T11/20 , B60T13/58 , B60T13/68
CPC classification number: B60T8/348 , B60T7/042 , B60T8/326 , B60T8/3645 , B60T8/4081 , B60T8/885 , B60T8/92 , B60T11/20 , B60T13/58 , B60T13/686 , B60T2270/402 , B60T2270/404 , B60T2270/82 , B60Y2400/81
Abstract: A brake system for hydraulically actuating a pair of front wheel brakes and a pair of rear wheel brakes includes a reservoir and a master cylinder fluidly connected to the reservoir and operable to provide a brake signal. A first power transmission unit is in fluid communication with the reservoir, a selected one of the rear wheel brakes, and a first fluid separator corresponding to a selected one of the front wheel brakes. A first electronic control unit is configured to control the first power transmission unit. A second power transmission unit is in fluid communication with the reservoir, the other one of the front wheel brakes, and a second fluid separator corresponding to an other one of the front wheel brakes. A second electronic control unit is configured to control the second power transmission unit.
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