-
公开(公告)号：US12101052B2
公开(公告)日：2024-09-24
申请号：US17880690
申请日：2022-08-04
发明人： Xinwei Chen , Yuanmiao Zhao , Da Xie , Yiqi Liang , Yizhen Hou , Zhimin Dan
摘要： An electric vehicle control system and a control method, an electric vehicle power-on method, an electric vehicle power-off method, and an electric vehicle charging method are disclosed in this application. The control system includes a domain control unit controlling an electric vehicle, a current sampling unit sampling the current of a power battery and a motor of the electric vehicle and sending sampling signals to the domain control unit, and electrical device, driven by the power battery, sampling the current flowing through it and sending the sampling signals to the domain control unit. The domain control unit, according to the sampling signals sent by the electrical device and the current sampling unit, manages the power battery and controls a motor driver module and the electrical device. The structure of the control system and the control policy are simplified and the power-on and power-off time is shortened.
-
公开(公告)号：US11652352B2
公开(公告)日：2023-05-16
申请号：US16978683
申请日：2019-12-06
发明人： Zhimin Dan , Jinbo Cai , Wei Zhang , Yizhen Hou , Xiong Zheng
CPC分类号： H02J7/0013
摘要： The present application provides a charge and discharge circuit, and relates to the field of battery power. The charge and discharge circuit comprises: a charge circuit comprising a battery pack, a first switch set and a charging device connected in series; and a discharge circuit comprising the battery pack, a second switch set and an electrical device connected in series; both the first switch set and the second switch set comprise at least one switch, and the at least one switch in the first and/or second switch set is a semiconductor switch.
-
3.发明授权公开(公告)号：US11650261B2
公开(公告)日：2023-05-16
申请号：US17562079
申请日：2021-12-27
发明人： Fangjie Zhou , Yizhen Hou , Xiyang Zuo , Qiandeng Li , Le Chu
IPC分类号： G01R31/389 , G01N27/02 , G01R31/392
CPC分类号： G01R31/389 , G01N27/026 , G01R31/392
摘要： Embodiments of the present application provide a detection apparatus of electrochemical impedance spectroscopy and a battery management system, the detection apparatus including a waveform generator, where the waveform generator is integrated in a battery monitoring chip; an excitation resistor; a detection resistor; and an MOS switch, wherein the waveform generator is configured to generate a pulse waveform, a gate electrode of the MOS switch is configured to receive the pulse waveform; the excitation resistor is configured to enable the battery to generate an excitation current when the gate electrode of the MOS switch receives the pulse waveform; the detection resistor is configured to convert the excitation current into an excitation voltage, the excitation voltage is configured to calculate an electrochemical impedance of the battery, The detection apparatus of electrochemical impedance spectroscopy in embodiments of the present application can lower cost and volume of EIS detection.
-
公开(公告)号：US20210184486A1
公开(公告)日：2021-06-17
申请号：US17123022
申请日：2020-12-15
发明人： Zhimin Dan , Jinbo Cai , Meilin Chen , Yizhen Hou , Wei Zhang
摘要： This application relates to a pre-charging circuit and a method thereof. The pre-charging circuit includes a controller, a PWM control unit, and a drive unit. The controller and the PWM control unit are electrically connected to the drive unit, and the drive unit is connected to a main switch of a battery management system circuit. When the main switch is turned on, the PWM control unit detects a current in the battery management system circuit and outputs a control signal to the drive unit according to the current. The controller outputs a preset PWM signal to the drive unit, which then turns the main switch off or on according to the received control signal and the PWM signal, to pre-charge a load capacitor of the battery management system circuit when the main switch (S1) is turned on, thereby implementing fast pre-charging by adjusting a pre-charging time of the load capacitor.
-
公开(公告)号：US20210119547A1
公开(公告)日：2021-04-22
申请号：US17137165
申请日：2020-12-29
发明人： Liansong Wang , Zhimin Dan , Yizhen Hou , Fangjie Zhou , Changjian Liu
摘要： The present application discloses a system and method for providing a constant power source. The system includes: a main control module configured to receive a wake-up time and send the wake-up time to a timer device; a timer power supply module configured to supply power to the timer device according to electric energy in a high-voltage battery pack; a high-voltage power supply module configured to supply power to a power conversion module according to the electric energy in the high-voltage battery pack; the timer device configured to set a wake-up clock according to the wake-up time, start timing when a battery management system (BMS) enters into sleep, and send a discharge instruction to the high-voltage battery pack when the timing reaches the wake-up time; the power conversion module configured to convert high-voltage electric energy output from the high-voltage battery pack into low-voltage electric energy and supply power to the BMS.
-
公开(公告)号：US20210075073A1
公开(公告)日：2021-03-11
申请号：US17099956
申请日：2020-11-17
发明人： Yizhen Hou , Xiyang Zuo , Zhimin Dan , Wei Zhang , Xingyuan Wu , Taosheng Zhu
IPC分类号： H01M10/615 , H01M10/48 , H01M10/637 , H01M10/657 , H01M10/625 , H02J7/34 , H02J7/00
摘要： The present application discloses a heating module, a heating method for a battery module, and a heating system. The heating module includes: an energy storage unit, a first switch unit, a second switch unit and a control unit. The energy storage unit, a first battery unit in a battery module and the first switch unit may form a first heating loop; the energy storage unit, a second battery unit in the battery module, and the second switch unit may form a second heating loop. The control unit may control the first switch unit or the second switch unit, so as to sequentially switch on, between the first heating loop and the second heating loop, a heating loop where a battery unit with a higher state of charge is located and a heating loop where a battery unit with a lower state of charge is located.
-
公开(公告)号：US20210072336A1
公开(公告)日：2021-03-11
申请号：US16953563
申请日：2020-11-20
发明人： Yizhen Hou , Zhimin Dan , Wei Zhang , Jia Xu
摘要： A measurement device includes: a host computer and a current source, wherein the host computer is configured to: control, when ambient temperature of a current detection device is at a preset temperature within an operation temperature range of a shunt of the current detection device, the current source to output a current with a preset current value to the current detection device; receive a calibrated current value sent by the current detection device; calculate a measurement error of the current detection device according to the preset current value and the calibrated current value; and instruct, when the measurement error is less than a preset current error, the current detection device to use the predetermined current calibration coefficient as a current calibration coefficient.
-
公开(公告)号：US10928459B2
公开(公告)日：2021-02-23
申请号：US16113424
申请日：2018-08-27
发明人： Zhanyu Sun , Zhimin Dan , Yizhen Hou , Jiechao Luo , Wei Zhang
IPC分类号： G01R31/389 , G01R31/14 , G01R31/327 , G01R31/36 , G01R27/02
摘要： The present disclosure provides a battery detection circuit and a battery management system. The battery detection circuit includes a positive relay, a negative relay, a first positive sampling unit, a first negative sampling unit, a second positive sampling unit, a second negative sampling unit, and a reference voltage terminal, wherein: all of the first positive sampling unit, the first negative sampling unit, the second positive sampling unit, the second negative sampling unit and a power battery pack to be detected are connected to the reference voltage terminal. With the battery detection circuit and the battery management system of the present disclosure, both the cost of the battery detection circuit and the complexity of the structure of the battery detection circuit can be reduced.
-
公开(公告)号：US20200348365A1
公开(公告)日：2020-11-05
申请号：US16559644
申请日：2019-09-04
发明人： Xiao WANG , Chao Zeng , Jia Xu , Zhimin Dan , Yizhen Hou , Wei Zhang , Guoliang Hu
IPC分类号： G01R31/392 , H02J7/00 , G01R31/3842 , G01K3/00 , G01K3/10 , G01K13/00 , H01M10/48 , H01M10/42
摘要： The disclosure provides a thermal runaway detection circuit and method, and relates to batteries. The thermal runaway detection circuit includes: a sensing module including a sensing cable; a detection module connected to the sensing cable and including at least one set of voltage dividing resistors; a processing module connected to the detection module, wherein the processing module is configured to obtain thermal runaway detection data, and determine whether thermal runaway occurs in the battery pack based on the thermal runaway detection data, wherein the thermal runaway detection data includes battery pack data and sampled data collected from sampling points, and the sampling points are disposed between the two connected voltage dividing resistor sets. The technical solutions in the present disclosure can improve safety of the battery pack.
-
公开(公告)号：US10775441B2
公开(公告)日：2020-09-15
申请号：US16112718
申请日：2018-08-26
发明人： Zhimin Dan , Zhanyu Sun , Yizhen Hou , Jiechao Luo , Wei Zhang
IPC分类号： G01R31/36 , G01R31/389 , G01R31/14 , G01R27/02 , G01R31/327
摘要： An insulation detection circuit, detection method, and battery management system are disclosed in the present disclosure. The insulation detection circuit includes a positive sampling unit, a negative sampling unit, a positive sampling point, a negative sampling point, a reference voltage terminal, and a processor. A first end of the positive sampling unit is connected with positive electrode of the power battery pack to be measured. A second end of the positive sampling unit is connected with the reference voltage terminal and the positive sampling point. A first end of the negative sampling unit is connected with negative electrode of the power battery pack to be measured. A second end of the negative sampling unit is connected with the reference voltage terminal and the negative sampling point. The processor is connected with the positive sampling point and the negative sampling point.
-
-
-
-
-
-
-
-
-
搜索结果
72 条记录 (耗时 0.028 秒)
