Model-Based Fault Diagnosis for NiMH Battery

2008 ◽  
Author(s):  
Chris Suozzo ◽  
Simona Onori ◽  
Giorgio Rizzoni
Keyword(s):  
Fault Diagnosis ◽  
Electric Vehicle ◽  
Temperature Sensor ◽  
Hybrid Electric Vehicle ◽  
Current Sensor ◽  
Fault Current ◽  
Sensor Fault ◽  
Battery Systems ◽  
Electric Vehicle Battery ◽  
Nimh Battery

The objective of this paper is to present a fault diagnosis methodology for hybrid electric vehicle battery systems. The faults that have been considered include: temperature sensor fault, current sensor fault, and voltage sensor. Many of these faults, if left undetected, will result in decreased battery performance and could eventually lead to pack failure.

The Electric Vehicle Drive System Considering Current Sensor Fault

2015 ◽  
Vol 738-739 ◽  
pp. 140-143
Author(s):  
Hang Ye ◽  
Xiao Jin Fu ◽  
Zhou Yun Zhang ◽  
Chun Lan Que ◽  
Hao Xiao
Keyword(s):  
Electric Vehicle ◽  
Drive System ◽  
Current Sensor ◽  
Fault Current ◽  
Sensor Faults ◽  
Sensor Fault ◽  
Stator Current ◽  
Current Test ◽  
Vehicle Operation ◽  
Dc Current

This paper proposes an algorithm of electric vehicle drive system when any current sensor fault. Reconstruct rough stator current by decomposing the DC current. Test whether any sensor fault by comparing the rough reconstructions and measured stator currents.Switch to the reconstructed stator current after corrected from the fault current when a stator sensor faults. Switch to the reconstructed DC current from the fault current when the DC sensor faults. Simulation result verifies the effectiveness of detecting the fault and keeping electric vehicle operation normal.

scholarly journals Comparison of Plug-In Hybrid Electric Vehicle Battery Life Across Geographies and Drive Cycles

2012 ◽  
Author(s):  
Kandler Smith ◽  
Matthew Earleywine ◽  
Eric Wood ◽  
Jeremy Neubauer ◽  
Ahmad Pesaran
Keyword(s):  
Electric Vehicle ◽  
Hybrid Electric Vehicle ◽  
Battery Life ◽  
Electric Vehicle Battery ◽  
Hybrid Electric

scholarly journals Electric Vehicle Battery Performance Investigation Based on Real World Current Harmonics

Energies ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 489 ◽  
Author(s):  
Sid-Ali Amamra ◽  
Yashraj Tripathy ◽  
Anup Barai ◽  
Andrew D. Moore ◽  
James Marco
Keyword(s):  
Electric Vehicle ◽  
Real World ◽  
Low Frequency ◽  
Single Frequency ◽  
Current Harmonics ◽  
Battery Systems ◽  
Electric Vehicle Battery ◽  
Dc Bus ◽  
Dc Current ◽  
The Impact

Electric vehicle (EV) powertrains consist of power electronic components as well as electric machines to manage the energy flow between different powertrain subsystems and to deliver the necessary torque and power requirements at the wheels. These power subsystems can generate undesired electrical harmonics on the direct current (DC) bus of the powertrain. This may lead to the on-board battery being subjected to DC current superposed with undesirable high- and low- frequency current oscillations, known as ripples. From real-world measurements, significant current harmonics perturbations within the range of 50 Hz to 4 kHz have been observed on the high voltage DC bus of the EV. In the limited literature, investigations into the impact of these harmonics on the degradation of battery systems have been conducted. In these studies, the battery systems were supplied by superposed current signals i.e., DC superposed by a single frequency alternating current (AC). None of these studies considered applying the entire spectrum of the ripple current measured in the real-world scenario, which is focused on in this research. The preliminary results indicate that there is no difference concerning capacity fade or impedance rise between the cells subjected to just DC current and those subjected additionally to a superposed AC ripple current.

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