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1. 发明公开

US20240067048A1 AUTOMOTIVE BATTERY SYSTEM 审中-公开
公开(公告)号：US20240067048A1
公开(公告)日：2024-02-29
申请号：US18454075
申请日：2023-08-23
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： YU HOSHINO
IPC分类号： B60L58/25 , B60H1/00 , B60K11/02 , B60L3/06 , B60L50/60 , H01M10/48 , H01M10/613 , H01M10/625 , H01M10/635 , H01M10/6568 , H01M10/663
CPC分类号： B60L58/25 , B60H1/00278 , B60K11/02 , B60L3/06 , B60L50/60 , H01M10/486 , H01M10/613 , H01M10/625 , H01M10/635 , H01M10/6568 , H01M10/663 , B60H2001/00307 , B60L2240/12 , B60L2240/545 , B60L2250/28 , H01M2220/20
摘要： When the temperature of a battery is high, the output power of the battery is limited to suppress the temperature rise. Upon fulfillment of three conditions of (i) the ambient temperature is equal to or higher than a predetermined temperature, (ii) the vehicle traveling load is equal to or greater than a predetermined traveling load, and (iii) the operating load of a battery cooling device is equal to or greater than a predetermined operating load, the output power of the battery is limited using a high-load output limiting value less than an output limiting value for the normal condition in a temperature range equal to or higher than a second power restrictive lower limit temperature that is equal to or lower than a first power restrictive lower limit temperature for the normal condition.

2. 发明授权

US11807118B2 Method and device for operating a voltage converter 有权
公开(公告)号：US11807118B2
公开(公告)日：2023-11-07
申请号：US16772898
申请日：2018-11-09
申请人： Robert Bosch GmbH , Mechthild Hellmann
发明人： Manfred Hellmann
IPC分类号： B60L53/20 , B60L3/00 , B60L3/04 , B60L3/06 , B60W50/02 , B60W50/023 , H02H7/12 , H05K7/20 , H02M1/32
CPC分类号： B60L53/20 , B60L3/0038 , B60L3/0092 , B60L3/04 , B60L3/06 , B60W50/023 , B60W50/0205 , H02H7/1213 , H05K7/20945 , B60L2210/10 , B60L2240/525 , H02M1/325 , H02M1/327
摘要： The invention relates to a device for operating a voltage converter (1), in particular a DC converter, of a motor vehicle, which voltage converter has at least two parallel-connected converter strands (4, 5) which are connected between a high-voltage side (2) and a low voltage side (3) of the voltage converter (1) for converting the voltage, having at least one cooling device (8) carrying a coolant (9) and assigned to the converter strands (4, 5), wherein each of the converter strands (4, 5) is assigned at least one temperature sensor (6, 7), comprising the following steps: a) detecting an input voltage, an output voltage and an operating current of each converter strand (4, 5), b) detecting a current converter strand temperature by means of the respective temperature sensor (6, 7), c) determining a respective coolant temperature as a function of the values detected in steps a) and b), d) comparing the two determined coolant temperatures (T_1, T_2) with each other and e) determining the serviceability of the temperature sensors (6, 7) on the basis of the result of the comparison.

3. 发明授权

US11764575B2 Low voltage electrical load shedding system 有权
公开(公告)号：US11764575B2
公开(公告)日：2023-09-19
申请号：US17370077
申请日：2021-07-08
申请人： Rivian IP Holdings, LLC
发明人： Tae Hoon Park , Tylynn Haddow
IPC分类号： H02J1/14 , B60L3/06 , H02J7/00
CPC分类号： H02J1/14 , B60L3/06 , H02J7/0063 , H02J2207/20 , H02J2310/48
摘要： A battery load management system and methods of managing a battery load, e.g., in a vehicle, may be directed to a converter that steps down electrical power from an input voltage to a reduced voltage. An electrical bus in electrical communication with the converter may be configured to supply electrical power received from the converter at the reduced voltage to a plurality of electrical loads. A controller may be configured to detect a load shed trigger, and in response to the detection select one or more low-priority loads included in the plurality of electrical loads. The controller may also be configured to reduce electrical power consumption by the one or more low-priority loads.

4. 发明授权

US11601084B2 Battery pack, power tool and battery pack charger system 有权
公开(公告)号：US11601084B2
公开(公告)日：2023-03-07
申请号：US16376810
申请日：2019-04-05
申请人： Black & Decker Inc.
发明人： Andrew E. Seman, Jr. , Matthew J. Velderman , Daniel J. White
IPC分类号： H01M10/00 , H02P29/40 , B60L3/08 , B60L3/06 , H01M16/00 , H02J7/34 , H01M8/04858 , H01M50/20 , H01M50/543 , C07F5/02 , H01M10/0567 , H01M10/0568 , B60L1/00
摘要： When providing alternating current (AC) power to operate AC powered devices such as power tools (such as drills, table saws, miter saws), equipment (such as lawn mowers), and consumer products (such as refrigerators, television, lights) without being tied to a fixed utility power supply typically requires a generator (such as an internal combustion engine based generator) or a battery powered inverter. In order to meet power and runtime needs for these devices, a battery powered inverter must be relatively large and expensive. This simple fact prohibits their use in many environments.

5. 发明授权

US11370307B2 Method and apparatus for controlling an electric motor 有权
公开(公告)号：US11370307B2
公开(公告)日：2022-06-28
申请号：US16229488
申请日：2018-12-21
申请人： Sevcon Limited
发明人： Richard Hellinga , Jason Wiseman , Howard Slater , Chris Pearce
IPC分类号： B60L15/20 , B60L3/06 , H02P6/28
摘要： A method for controlling an electric motor is described herein. The method includes setting a current limit, a speed limit and a torque limit. The method also includes sensing a DC link current, comparing the sensed DC link current with the current limit and adjusting the torque limit based on the comparison with the current limit to provide an adjusted torque limit. The method also includes sensing the speed of the electric motor, comparing the speed with the speed limit and further adjusting the adjusted torque limit based on the comparison with the speed limit.

6. 发明授权

US09559626B2 Apparatus for controlling motor in electric vehicle and method for preventing overheating of traction motor 有权
标题翻译：用于控制电动车辆中的电动机的装置和用于防止牵引电动机过热的方法
公开(公告)号：US09559626B2
公开(公告)日：2017-01-31
申请号：US14645087
申请日：2015-03-11
申请人： LSIS CO., LTD.
发明人： Sun Woo Lee
IPC分类号： H02P7/00 , H02P23/14 , B60L3/00 , B60L3/06 , B60L11/18 , B60L15/00 , B60L15/20
CPC分类号： H02P23/14 , B60L3/0061 , B60L3/06 , B60L11/1803 , B60L11/1864 , B60L15/007 , B60L15/20 , B60L2240/423 , B60L2240/425 , B60L2240/429 , B60L2260/167 , H02P29/032 , Y02T10/645 , Y02T10/7005 , Y02T10/7061 , Y02T10/72 , Y02T10/7275
摘要： Provided is a method for preventing overheating of a traction motor in an electric vehicle. The method for preventing the overheating of the traction motor in the electric vehicle includes identifying magnitude of an output load of the motor, identifying a loading time of the motor on the basis of the identified magnitude of the output load, comparing the identified loading time to a preset critical time, and controlling output torque of the motor according to the comparison result.
摘要翻译：提供一种用于防止电动车辆中的牵引电动机过热的方法。用于防止电动车辆中的牵引电动机过热的方法包括识别电动机的输出负载的大小，基于所识别的输出负载的大小来识别电动机的负载时间，将所识别的负载时间与预设的临界时间，并根据比较结果控制电机的输出转矩。

7. 发明授权

US09352656B2 Temperature based electric machine control 有权
标题翻译：基于温度的电机控制
公开(公告)号：US09352656B2
公开(公告)日：2016-05-31
申请号：US13600964
申请日：2012-08-31
申请人： Balakrishna Rao , Rimma Isayeva , Daniel Luedtke
发明人： Balakrishna Rao , Rimma Isayeva , Daniel Luedtke
IPC分类号： B60L1/00 , B60L11/18 , B60L3/00 , B60L3/06 , B60L15/20 , H02K1/27 , H02K15/00 , B60K1/00
CPC分类号： H02P29/68 , B60K2001/006 , B60L3/0038 , B60L3/06 , B60L11/18 , B60L15/20 , B60L2240/423 , B60L2240/425 , B60L2260/44 , H02K1/2766 , H02K11/25 , H02K15/00 , Y02T10/641 , Y02T10/645 , Y02T10/72 , Y02T10/7275
摘要： A vehicle having at least one electric machine capable of propelling the vehicle is provided. An oil circulation path is provided that circulates oil through the electric machines. A controller commands the electric machines to fulfill torque demands. The controller utilizes the oil temperature in the oil circulation path in order to control the commanded torque output by the electric machines. In the event of a failure or fault in the oil temperature sensors, the controller estimates the oil temperature from the temperature of coils within the electric machine. The estimated oil temperature is utilized instead of the sensed oil temperature to control the torque outputs to maintain torque demands.
摘要翻译：提供具有能够推进车辆的至少一台电机的车辆。提供了通过电机使油循环的油循环路径。控制器命令电机实现扭矩要求。控制器利用油循环路径中的油温来控制电机的指令扭矩输出。在油温传感器发生故障或故障的情况下，控制器根据电机内的线圈温度估算油温。利用估计的油温而不是检测到的油温来控制扭矩输出以维持扭矩需求。

8. 发明授权

US09124208B2 Control apparatus for a power converter connected to a rotary machine which is operable as a drive motor of a vehicle 有权
标题翻译：连接到可作为车辆的驱动电动机操作的旋转机器的电力转换器的控制装置
公开(公告)号：US09124208B2
公开(公告)日：2015-09-01
申请号：US13889738
申请日：2013-05-08
申请人： DENSO CORPORATION
发明人： Hiroshi Inamura , Hajime Uematsu , Takayuki Kakihara
IPC分类号： H02P6/08 , H02P27/06 , B60K11/02 , H02P29/00 , H02P29/02 , B60L3/00 , B60L3/06
CPC分类号： H02P29/0088 , B60L3/0061 , B60L3/06 , B60L2240/425 , H02P29/028 , H02P29/032 , H02P29/68 , Y02T10/642
摘要： In a vehicle, a control apparatus controls a power converter supplying a rotary machine which can operate as a drive motor of the vehicle, and controls a cooling apparatus for circulating a coolant fluid through the rotary machine and the power converter. When a temporary condition occurs immediately after commencement of the circulation, whereby the temperatures of the coolant fluid and of switching elements in the power converter are judged to concurrently exceed respective specified temperature thresholds, the control apparatus limits the maximum power that can be supplied from the power converter to a lower value than is normally available. When the temperature of the coolant fluid is judged to no longer exceed the corresponding temperature threshold, the limiting is released.
摘要翻译：在车辆中，控制装置控制供给可作为车辆的驱动电动机的旋转机械的动力转换器，并且控制用于使冷却剂流体循环通过旋转机器和功率转换器的冷却装置。当临时状态在循环开始后立即发生，由此判定冷却剂流体和功率转换器中的开关元件的温度同时超过相应的规定温度阈值时，控制装置限制从电源转换器的电压值低于正常情况。当冷却剂流体的温度被判定为不再超过相应的温度阈值时，限制被释放。

9. 发明申请

US20150120123A1 ELECTRIC AUTOMOBILE 审中-公开
标题翻译：电动汽车
公开(公告)号：US20150120123A1
公开(公告)日：2015-04-30
申请号：US14587240
申请日：2014-12-31
申请人： NTN CORPORATION
发明人： Takayoshi Ozaki
IPC分类号： B60L3/06 , B60L3/12 , H02P6/00 , B60L15/20
CPC分类号： B60L3/06 , B60K7/0007 , B60L1/003 , B60L3/003 , B60L3/0061 , B60L3/12 , B60L11/1803 , B60L11/1861 , B60L15/025 , B60L15/2009 , B60L15/2036 , B60L15/2054 , B60L2220/14 , B60L2220/46 , B60L2220/50 , B60L2240/12 , B60L2240/24 , B60L2240/34 , B60L2240/36 , B60L2240/421 , B60L2240/423 , B60L2240/425 , B60L2240/429 , B60L2240/461 , B60L2250/16 , B60L2250/26 , B60L2260/28 , B60L2270/145 , H02P6/28 , H02P29/032 , H02P29/64 , Y02T10/641 , Y02T10/642 , Y02T10/643 , Y02T10/7005 , Y02T10/7044 , Y02T10/705 , Y02T10/7275
摘要： An electric vehicle includes a motor unit configured to drive a wheel, the motor unit including motor coils; a control system including an inverter; a temperature sensor configured to sense temperature of the motor coils or the inverter; and a limiter configured to, if the temperature sensed by the temperature sensor is equal to or greater than a motor coils temperature threshold, reduce a motor current of the motor unit until a derivative dTmc/dt of the sensed temperature with time drops to zero or below, or to, if the temperature sensed by the temperature sensor is equal to or greater than an inverter temperature threshold, limit a current command to the inverter until a derivative dTic/dt of the sensed temperature with time drops to zero or below. The limiter is further configured to stop reducing a motor current of the motor or limiting the current command to the inverter.
摘要翻译：一种电动车辆包括构造成驱动车轮的电动机单元，所述电动机单元包括电动机线圈; 包括逆变器的控制系统; 温度传感器，其构造为感测所述电动机线圈或所述逆变器的温度; 以及限制器，其被配置为，如果由所述温度传感器检测到的温度等于或大于电动机线圈温度阈值，则减小所述电动机单元的电动机电流，直到所述感测温度随时间的导数dTmc / dt下降到零或或者如果由温度传感器感测的温度等于或大于逆变器温度阈值，则将电流指令限制在逆变器上，直到感测到的温度随时间的导数dTic / dt下降到零以下。限制器还被配置为停止减小电动机的电动机电流或限制电流指令到逆变器。

10. 发明授权

US4489258A Propulsion system for vehicles with a d-c machine 失效
标题翻译：具有d-c机器的车辆推进系统
公开(公告)号：US4489258A
公开(公告)日：1984-12-18
申请号：US463551
申请日：1983-02-03
申请人： Hans Kahlen , Jurgen Angelis
发明人： Hans Kahlen , Jurgen Angelis
IPC分类号： H02P7/06 , B60L3/06 , H02P7/281 , G05B5/00
CPC分类号： H02P7/2815 , B60L3/06 , Y02T10/642 , Y10S388/921
摘要： A propulsion system for vehicles, includes a d-c machine, an armature current control element connected to the d-c machine, an alternating member having an output side connected to the armature control element and having an input side, an armature current control device connected between the input side of the alternating member and the d-c machine for delivering a first armature current reference value to the alternating member, a maximum value formed connected between the input side of the alternating member and the d-c machine for receiving the value of the actual machine speed and the actual armature current from the d-c machine and for delivering a second maximally permissible armature current reference value to the alternating member, the alternating member passing on the smaller of the first and second armature current reference value to the armature current control element.
摘要翻译：一种用于车辆的推进系统，包括直流电机，连接到直流电机的电枢电流控制元件，具有连接到电枢控制元件并具有输入侧的输出侧的交替构件，连接在输入端之间的电枢电流控制装置交替构件和直流电机的侧面，用于将交替构件的第一电枢电流参考值传递给交替构件;连接在交替构件的输入侧和直流电机之间的最大值，用于接收实际机器速度的值，以及来自直流电机的实际电枢电流并且用于将第二最大允许的电枢电流参考值传递给交替构件，所述交替构件将第一和第二电枢电流参考值中的较小的电枢电流参考值传递到电枢电流控制元件。

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