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公开(公告)号：US20210039498A1
公开(公告)日：2021-02-11
申请号：US17083330
申请日：2020-10-29
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Yuqun ZENG , Kai Wu , Wei Dai , Chao Wang , Qiandeng Li
IPC: B60L3/04 , B60L3/00 , H03K17/687
Abstract: The present disclosure provides a high-voltage interlock system and a detection method thereof. The high-voltage interlock system includes a target control device and at least one non-target control device connected in sequence. The target control device includes a detection unit, a current generation controller, a current generator, and a second high-voltage component. A controller in the target control device generates a pulse drive signal for driving the current generation controller, receives a detection result signal output from a current detector, and determines a fault of a high-voltage interlock circuit according to the detection result signal; the current generation controller generates an alternating voltage signal according to the pulse drive signal; the current generator outputs an alternating current signal according to the alternating voltage signal; the current detector acquires a voltage signal across a detection resistor set and outputs the detection result signal.
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公开(公告)号：US10814726B2
公开(公告)日：2020-10-27
申请号：US16364395
申请日：2019-03-26
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yuqun Zeng , Kai Wu , Chao Wang , Wei Dai , Qiandeng Li
Abstract: A control apparatus comprises a microcontroller, an auxiliary circuit, a delay module and a logical circuit; the microcontroller is connected to a first input end of the logical circuit via the auxiliary circuit and connected to a second input end of the logical circuit via the delay module, and an output end of the logical circuit is connected to a device to be controlled; if the microcontroller is reset in a process of outputting the closing control signal, a delay disabling signal becomes invalid, the delay module is enabled to output the closing control signal within a preset delay time, wherein the delay time is greater than or equal to a reset time. A power supply system is also provided to avoid a risk that an automobile suddenly loses power due to unexpected reset of the microcontroller.
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公开(公告)号：US11598799B2
公开(公告)日：2023-03-07
申请号：US17083330
申请日：2020-10-29
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Yuqun Zeng , Kai Wu , Wei Dai , Chao Wang , Qiandeng Li
Abstract: The present disclosure provides a high-voltage interlock system and a detection method thereof. The high-voltage interlock system includes a target control device and at least one non-target control device connected in sequence. The target control device includes a detection unit, a current generation controller, a current generator, and a second high-voltage component. A controller in the target control device generates a pulse drive signal for driving the current generation controller, receives a detection result signal output from a current detector, and determines a fault of a high-voltage interlock circuit according to the detection result signal; the current generation controller generates an alternating voltage signal according to the pulse drive signal; the current generator outputs an alternating current signal according to the alternating voltage signal; the current detector acquires a voltage signal across a detection resistor set and outputs the detection result signal.
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