Shoot-through protection for an inverter consisting of the next-generation IGBTs with gate impedance reduction

Hasegawa, Kazunori; Abe, Seiya; Tsukuda, Mamoru; Omura, Ichiro; Ninomiya, Tamotsu

doi:10.1016/j.microrel.2020.113765

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…In the inverter, there is the possibility to introduce a shoot-through. This is a state where the IGBTs of S1 and S2 (see Figure 6) of one phase are closed simultaneously [23]. This creates a DC short circuit.…”

Section: Iso 26262mentioning

confidence: 99%

HIL based Real-Time Co-Simulation for BEV Fault Injection Testing

Konzept,

Reick,

Pintaric

et al. 2023

SAE Technical Paper Series

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<div class="section abstract"><div class="htmlview paragraph">Battery electric vehicle (BEV) adoption and complex powertrains pose new challenges to automotive industries, requiring comprehensive testing and validation strategies for reliability and safety. Hardware-in-the-loop (HIL) based real-time simulation is important, with cooperative simulation (co-simulation) being an effective way to verify system functionality across domains. Fault injection testing (FIT) is crucial for standards like ISO 26262.</div><div class="htmlview paragraph">This study proposes a HIL-based real-time co-simulation environment that enables fault injection tests in BEVs to allow evaluation of their effects on the safety of the vehicle. A Typhoon HIL system is used in combination with the IPG CarMaker environment. A four-wheel drive BEV model is built, considering high-fidelity electrical models of the powertrain components (inverter, electric machine, traction battery) and the battery management system (BMS). Additionally, it enables validation of driving dynamics, routes and environmental influences and provides a precise analysis of the effect of powertrain system faults on driving behavior. A possible case for a fault injection is to introduce a shoot-through fault in the inverter. Through the co-simulation, it is possible to analyze the effects on the powertrain and the vehicle dynamics in different driving situations (e.g. snow). This work demonstrates that co-simulation is a valuable tool for the development and validation of BEVs, and presents specific fault cases introduced into the powertrain and the resulting effects tested under different driving conditions. In addition, the study discusses the system's limitations and future possibilities such as controller hardware integration (Controller-HIL) and autonomous driving system validation.</div></div>

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Section: Iso 26262mentioning

confidence: 99%

HIL based Real-Time Co-Simulation for BEV Fault Injection Testing

Konzept,

Reick,

Pintaric

et al. 2023

SAE Technical Paper Series

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“…When the dV CE /dt is high enough, the gate voltage can surpass the threshold voltage and causes unwanted false turnon. This false triggering turn-on can cause shoot-through faults [8]. Recently, the dV CE /dt is found to be a good junction…”

Section: Introductionmentioning

confidence: 99%

A Temperature-Dependent dV_CE/dt Model for Field-Stop IGBT at Turn-Off Transient

Xue

2023

IEEE J. Emerg. Sel. Topics Power Electron.

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In this paper, an analytical model is proposed to model collector-emitter voltage rising slope (dVCE/dt) of fieldstop (FS) IGBT during turn-off transient. Thanks to TCAD simulation, the internal physics of the FS IGBT during VCE rise transient is investigated. Based on the improved understanding of the VCE rise transient, an analytical solution of the excess carrier distribution in the N-base region and FS layer is derived. An analytical model for dVCE/dt of FS IGBT is also proposed. The temperature dependency of various silicon material and device parameters are included in the model. In the end, the doublepulse tests are performed on 650V/40A and 1200V/40A FS IGBTs. The test results are compared with the analytical predictions and good agreement is obtained.

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