• Currently, the instrument is applicable to battery pack detection for more than 95% of new energy vehicle brands, and the coverage is continuously updated. An integgrated intelligent detector for new energy vehicles.
• Integrate four kinds of detection tools: Integrated oscilloscope, multimeter, insulation detection and current clamp, covering the common measurement requirements in the maintenance scene of NEV battery pack. • Equipped with special connectors for battery packs of various brands, which support plug and play without tedious jumper operation.
An integgrated intelligent detector for new energy vehicles. The equipment integrates the battery pack detection and whole vehicle system detection functions for new energy vehciles, and integrates oscilloscope, multimeter, insulation test, and current clamp.
For the upper-limit voltage of the battery pack, the fault diagnosis voltage was 410 V when the actual voltage of the battery pack recorded by the sensor was 450 V. The fault level for this condition is denoted No. I.
In this paper, a novel model-based fault detection in the battery management system of an electric vehicle is proposed. Two adaptive observers are designed to detect state-of-charge faults and voltage sensor faults, considering the impact of battery aging.
Then, it is assumed that aging effects are time-varying. Therefore, the fault detection scheme can detect faults of new battery cells as well as aged cells. Some simulations have been conducted on a Lithium-ion battery cell and extended to battery pack, to demonstrate the performance of the proposed approach in more real-world scenarios.
The first layer fault detection is based on the thresholds of over-charge and over-discharge of a battery pack. In the second layer, confidence interval estimation is applied to …
The battery pack based on the individual DP (dual polarization) battery model is established to verify the ISCr detection method. The 1–1000 Ω s ISCr (the early stage ISCr) …
An integgrated intelligent detector for new energy vehicles. The equipment integrates the battery pack detection and whole vehicle system detection functions for new energy vehciles, and integrates oscilloscope, multimeter, …
This paper proposes a short circuit detection and isolation method for lithium-ion battery packs based on relative entropy. The proposed data-driven method can identify the voltage drop …
The safety of electric vehicles (EVs) has aroused widespread concern and attention. As the core component of an EV, the power battery directly affects the performance and safety. In order to improve the safety of …
Taking the leakage detection of byd-qin hybrid high-voltage system as an example, this paper analyzes the fault generation mechanism and puts forward the detection …
The high voltage system of new energy vehicle is equipped with leakage sensor, which is mainly used to detect the insulation impedance between the main line of DC power supply of electric …
Features • Orginal level detection of battery pack : support reading the current SOC/SOH, single/ module voltage, input/output current and power, battery temperature and other parameters of the battery pack. Support reading the …
Lithium-ion battery cell voltage is the most intuitive and effective dynamic information in the operation of EVs. Early and precise detection of voltage faults is helpful to …
While Shannon entropy can describe this voltage anomaly behavior well on limited data, Wang et al. proposed a voltage anomaly detection method based on modified …
The first layer fault detection is based on the thresholds of over-charge and over-discharge of a battery pack. In the second layer, confidence interval estimation is applied to …
The battery pack voltage of lithium iron phosphate battery packs ranges from 275 to 401.5 V. Considering the safety during the experiments, a 315–361.5 V battery pack voltage was adopted. For the upper-limit voltage of …
The high voltage system of new energy vehicle is equipped with leakage sensor, which is mainly used to detect the insulation impedance between the main line of DC power supply of electric …
The designed adaptive observers by updating battery aging effects through adaptation law are capable of detecting SoC estimation faults and voltage sensor fault for the …
Power switches or relays act as safety breakers, providing a means to electrically isolate the battery pack from energy flows in the event of faults, overheating, or …
The voltage and surface temperature are measured at 1 Hz for each cell and current is measured for the entire module during locomotive operations. The current is positive during discharging …
Usag e scenarios. Cell balancing: When the battery pack has inconsistent cell voltages, EB240 can be used to balance the cells to achieve consistent cell voltages within the …
She has been involved in leading and monitoring comprehensive projects when worked for a top new energy company before. She is certified in PMP, IPD, IATF16949, and …
It is vital to detect the safety state and identify faults of the battery pack for the safe operation of electric vehicles. The voltage faults such as over-voltage and under-voltage imply more …
With the progressive development of new energy technologies, high-power lithium batteries have been widely used in ship power systems due to their high-power density …
The designed adaptive observers by updating battery aging effects through adaptation law are capable of detecting SoC estimation faults and voltage sensor fault for the …
This paper firstly proposes an equivalent model for battery pack insulation fault diagnosis based on the signal injection method; then uses a double Kalman filter algorithm to …
This paper proposes a short circuit detection and isolation method for lithium-ion battery packs based on relative entropy. The proposed data-driven method can identify the voltage drop …
The battery pack voltage of lithium iron phosphate battery packs ranges from 275 to 401.5 V. Considering the safety during the experiments, a 315–361.5 V battery pack voltage …
An integgrated intelligent detector for new energy vehicles. The equipment integrates the battery pack detection and whole vehicle system detection functions for new energy vehciles, and …
2.2.3 Voltage prediction for battery pack and mean cell. The MDM has been studied in previous work [24, 39-41] for battery fault diagnosis. The basic principle of MDM is …
It is vital to detect the safety state and identify faults of the battery pack for the safe operation of electric vehicles. The voltage faults such as over-voltage and under-voltage imply more …