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公开(公告)号：US10821839B1
公开(公告)日：2020-11-03
申请号：US15887826
申请日：2018-02-02
Applicant: Wrightspeed, Inc.
Inventor： Ian Wright
Abstract: Provided are drivetrain systems of electrical vehicles comprising range extending turbines operable to dissipate some or all power generated by electrical drive motor-generators coupled to vehicle wheels. Also provided are methods of operating such systems. Power dissipation using turbines may be used, for example, when batteries cannot be further charged because of their current state of charge or some other conditions. This turbine power dissipation effectively extends engine braking capabilities of electrical vehicles and reduces operation of friction brakes. The power generated by an electrical drive motor-generator may depend on various limits, such as a vehicle deceleration limit, traction limit, power generation limit, and power receiving limit. Specifically, the electrical power is generated at a level when at least one of these limits is reached but neither is exceeded. Furthermore, the power generation level is continuously and dynamically controlled based on changes in operating conditions.
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公开(公告)号：US10742094B1
公开(公告)日：2020-08-11
申请号：US15887811
申请日：2018-02-02
Applicant: Wrightspeed, Inc.
Inventor： Ian Wright
Abstract: Provided are methods for monitoring temperatures of permanent magnets disposed on rotors of permanent magnet motors. Also provided are vehicle drivetrains including permanent magnet motors and controllers operable to monitor temperatures of permanent magnets used in these motors. A magnet temperature is determined based on the rotational speed of the motor and also based on the open circuit voltage of the motor at this rotational speed. The motor may be specifically calibrated to determine its response to magnet temperature changes for any rotational speed. During operation, an inverter connected to the motor and controlling motor's operation may pause its switching for a period of time and check the open circuit voltage of the motor during this period. The corresponding rotor speed may be obtained from other sensors. The controller uses this information to determine the magnet temperature and, in some embodiments, to perform various control operations to avoid overheating.
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公开(公告)号：US10518831B2
公开(公告)日：2019-12-31
申请号：US15959777
申请日：2018-04-23
Applicant: Wrightspeed, Inc.
Inventor： Ian Wright
IPC: B62D59/04 , B62D15/02 , B62D6/00 , B62D53/08 , B60W10/08 , B60W10/20 , B60W30/182 , B60L7/10 , B62D53/06 , B60R16/03
Abstract: Provided are self-powered actively steerable converter dollies (SPASCDs) for long combination vehicles (LCVs), LCVs utilizing SPASCDs, and methods of operating such LCVs. These SPASCDs could be used with conventional tractors and/or specifically configured tractors. A SPASCD may include an electrical drive, which can generate power (e.g., to charge SPASCD's battery) or generate torque using the electrical power stored in SPASCD's battery (e.g., to assist the tractor during acceleration or going uphill). The SPASCD also comprises steerable wheels and a steering component, configured to change the steering angle of the steerable wheels. The steering angle may be changed in response to various inputs, such as the steering angle of the tractor's front steerable wheels, the steering angle of the steerable wheels of another trailer in the same LCV, sensor inputs, and the like. This steering feature allows change the track of the SPASCD, e.g., to follow the tractor's track.
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公开(公告)号：US20140207320A1
公开(公告)日：2014-07-24
申请号：US14223900
申请日：2014-03-24
Applicant: WRIGHTSPEED, INC.
Inventor： Ian Wright , Ryan Cash
IPC: B60L15/20
CPC classification number: B60L15/20 , B60K7/0007 , B60L3/102 , B60L15/2036 , B60L15/2054 , B60L15/32 , B60L2220/44 , B60L2220/46 , B60L2240/461 , B60L2240/465 , B60W10/08 , B60W30/18172 , B60W50/087 , B60W2520/26 , B60W2720/26 , Y02T10/645 , Y02T10/7275
Abstract: Embodiments of the invention are directed toward a geared traction drive system configured to drive a wheel of a vehicle, comprising: a driveshaft for transmitting power to the wheel; an electric drive motor for driving the driveshaft, the electric drive motor configured to receive signals from a vehicle dynamic control system to command a required speed; a gear reduction component for reducing the speed of the motor by a predetermined factor to a lower speed suitable for driving the wheel; and a drive electronics component that works with the electric drive motor to drive the wheel to the speed commanded by the vehicle dynamic control system.
Abstract translation: 本发明的实施例涉及一种被配置为驱动车辆的车轮的齿轮传动牵引驱动系统，包括：用于将动力传递到车轮的驱动轴; 用于驱动所述驱动轴的电驱动马达，所述电驱动马达被配置为从车辆动态控制系统接收指令所需速度的信号; 齿轮减速部件，用于将电动机的速度以预定因数减小到适合于驱动车轮的较低速度; 以及驱动电子部件，其与电驱动马达一起驱动以将车轮驱动到由车辆动态控制系统指令的速度。
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公开(公告)号：US10989118B2
公开(公告)日：2021-04-27
申请号：US16228325
申请日：2018-12-20
Applicant: Wrightspeed, Inc.
Inventor： Ian Wright , Brandon Stitt
Abstract: Provided are turbine engines and methods of operating thereof by heating and evaporating liquid fuels in a controlled manner prior to burning. Specifically, a fuel is heated and evaporated while avoiding coking. Coking is caused by pyrolysis when the fuel contacts a metal surface within a certain temperature range, which is referred herein to a coking temperature range. In the described methods, the fuel is transferred from one component, maintained below the coking temperature range, to another component, maintained above this range. The fuel is airborne and does not contact any metal surfaces during this transfer, and coking does not occur. In some examples, the fuel is also mixed with hot air during this transfer. The heated fuel, e.g., as an air-fuel mixture, is then supplied into a combustor, where more air is added to reach flammability conditions.
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Patent Agency Ranking
公开(公告)号：US20190186367A1
公开(公告)日：2019-06-20
申请号：US16228325
申请日：2018-12-20
Applicant: Wrightspeed, Inc.
Inventor： Ian Wright , Brandon Stitt
CPC classification number: F02C7/224 , F02C3/24 , F02M31/045 , F02M31/08 , F05D2210/13 , F05D2260/213
Abstract: Provided are turbine engines and methods of operating thereof by heating and evaporating liquid fuels in a controlled manner prior to burning. Specifically, a fuel is heated and evaporated while avoiding coking. Coking is caused by pyrolysis when the fuel contacts a metal surface within a certain temperature range, which is referred herein to a coking temperature range. In the described methods, the fuel is transferred from one component, maintained below the coking temperature range, to another component, maintained above this range. The fuel is airborne and does not contact any metal surfaces during this transfer, and coking does not occur. In some examples, the fuel is also mixed with hot air during this transfer. The heated fuel, e.g., as an air-fuel mixture, is then supplied into a combustor, where more air is added to reach flammability conditions.
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公开(公告)号：US20180304944A1
公开(公告)日：2018-10-25
申请号：US15959777
申请日：2018-04-23
Applicant: Wrightspeed, Inc.
Inventor： Ian Wright
Abstract: Provided are self-powered actively steerable converter dollies (SPASCDs) for long combination vehicles (LCVs), LCVs utilizing SPASCDs, and methods of operating such LCVs. These SPASCDs could be used with conventional tractors and/or specifically configured tractors. A SPASCD may include an electrical drive, which can generate power (e.g., to charge SPASCD's battery) or generate torque using the electrical power stored in SPASCD's battery (e.g., to assist the tractor during acceleration or going uphill). The SPASCD also comprises steerable wheels and a steering component, configured to change the steering angle of the steerable wheels. The steering angle may be changed in response to various inputs, such as the steering angle of the tractor's front steerable wheels, the steering angle of the steerable wheels of another trailer in the same LCV, sensor inputs, and the like. This steering feature allows change the track of the SPASCD, e.g., to follow the tractor's track.
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公开(公告)号：US09920818B2
公开(公告)日：2018-03-20
申请号：US15366197
申请日：2016-12-01
Applicant: Wrightspeed, Inc.
Inventor： Ian Wright
CPC classification number: F16H3/666 , F15B15/149 , F16H3/663 , F16H61/0265 , F16H63/04 , F16H63/3023 , F16H63/50 , F16H2003/447 , F16H2061/0422 , F16H2063/3093 , F16H2200/0034 , F16H2200/2005 , F16H2200/2064 , F16H2200/2094 , F16H2200/2097 , F16H2306/42 , F16H2306/44 , F16H2306/46 , F16H2306/48 , F16H2306/50 , F16H2306/52
Abstract: Provided are gearboxes including compound planet gear assemblies as well as methods of using such gearboxes. A gearbox includes at least a first ring gear and a second ring gear. Depending on the current gear selection, one of these ring gears may be engaged with a shifting mechanism or not engaged with any ring gears when in a neutral gear. The first ring gear may be constantly engaged with a first planet gear of a compound planet gear assembly, while the second ring gear may be constantly engaged with a second planet gear of the same compound planet gear assembly. The first planet gear may be also engaged with a sun gear coupled to a shaft. Another shaft is coupled to the shifting mechanism. Different gear selections of the gearbox engage different ring gears to the shifting mechanism thereby changing the rotational speed ratio of the two shafts.
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公开(公告)号：US20170114870A1
公开(公告)日：2017-04-27
申请号：US15366197
申请日：2016-12-01
Applicant: Wrightspeed, Inc.
Inventor： Ian Wright
CPC classification number: F16H3/666 , F15B15/149 , F16H3/663 , F16H61/0265 , F16H63/04 , F16H63/3023 , F16H63/50 , F16H2003/447 , F16H2061/0422 , F16H2063/3093 , F16H2200/0034 , F16H2200/2005 , F16H2200/2064 , F16H2200/2094 , F16H2200/2097 , F16H2306/42 , F16H2306/44 , F16H2306/46 , F16H2306/48 , F16H2306/50 , F16H2306/52
Abstract: Provided are gearboxes including compound planet gear assemblies as well as methods of using such gearboxes. A gearbox includes at least a first ring gear and a second ring gear. Depending on the current gear selection, one of these ring gears may be engaged with a shifting mechanism or not engaged with any ring gears when in a neutral gear. The first ring gear may be constantly engaged with a first planet gear of a compound planet gear assembly, while the second ring gear may be constantly engaged with a second planet gear of the same compound planet gear assembly. The first planet gear may be also engaged with a sun gear coupled to a shaft. Another shaft is coupled to the shifting mechanism. Different gear selections of the gearbox engage different ring gears to the shifting mechanism thereby changing the rotational speed ratio of the two shafts.
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公开(公告)号：US11230196B2
公开(公告)日：2022-01-25
申请号：US16387096
申请日：2019-04-17
Applicant: Wrightspeed, Inc.
Inventor： Ian Wright , Ryan Cash
Abstract: Embodiments of the invention are directed toward a geared traction drive system configured to drive a wheel of a vehicle, comprising: a driveshaft for transmitting power to the wheel; an electric drive motor for driving the driveshaft, the electric drive motor configured to receive signals from a vehicle dynamic control system to command a required speed; a gear reduction component for reducing the speed of the motor by a predetermined factor to a lower speed suitable for driving the wheel; and a drive electronics component that works with the electric drive motor to drive the wheel to the speed commanded by the vehicle dynamic control system.
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