What is a functional safety concept for an HV traction inverter?
NXP has developed a functional safety concept for an HV traction inverter that addresses these two points. It defines several system deliverables that customers can use to build their own concept more quickly. Download the white paper * to learn more about functional safety concept for HV battery electric vehicles.
What does a power inverter do?
Focuses on vehicular electric power systems analysis, design, prototyping and testing to meet functional safety needs. The power inverter controls energy conversion between an electric source (e.g. battery) and the mechanical shaft of the pmsm motor based on torque requested from Vehicle Control Unit (VCU).
What is an HV inverter for EVs?
In the example of an HV inverter for EVs, the functional assumption could be resumed as follows: an inverter is the main traction system of an electric vehicle. It controls energy conversion between an electric source (HV DC battery) and the mechanical shaft of the electric motor, based on torque requested from the vehicle control unit (VCU).
How safe is an EV HV inverter?
In the case of an EV HV inverter, the definition of the safe state is quite complex due to a high amount of energy flowing into the electrical motor. In some cases this can result in unstable behavior instead of ensuring the safe state that is requested by the system.
What is an HV inverter?
An HV inverter is the main traction system of an electric vehicle, as shown in figure 1. It controls the energy conversion between the electric energy source and the mechanical shaft of the electric motor, based on the torque request from the Vehicle Control Unit (VCU).
What is a safety goal for an EV HV inverter?
According to ISO 26262, these hazards are then ranked by risk level. A safety goal for an EV HV inverter could be to avoid unintended acceleration if the vehicle is stopped. Figure 2: Examples of hazards and safety goals for an EV HV inverter
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Safety Features and Standards in High-Frequency Inverters
Several industry standards govern the safety of high-frequency inverters. These include: – IEC 62109-2: This standard specifies safety requirements for power electronic converters and inverters. – IEC 60950-1: This standard covers the safety of information …
Get Price →High-Voltage Power Inverter Platform for EV Traction …
COMPANY PUBLIC 9 Anatomy of EV Power Drives • Traction motor power inverter converts DC power from high voltage battery to high current multi-phase AC power • Output power & power density efficiency critical with >300 V typical battery voltages • Output power requirements ranging from 80 kW to 200+ kW • Functional safety requirement at ASIL …
Get Price →High voltage traction inverter safety concept whitepaper
This document is an overview of a system safety concept for a high-voltage traction inverter for electric vehicles. To help NXP customers design a functionally safe electric vehicle, …
Get Price →Safety concept for inverter system whitepaper
Figure 6: Examples of hazards and safety goals for an EV HV inverter FUNCTIONAL SAFETY CONCEPT With these assumptions, item definition and hazard and safety goals, the first high-level system functionalities can be defined. The first functional requirements (FR) and associated high-level functional safety requirements (FSR)
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primary-side power is in the range of 12 V DC to 24 VDC. A high isolation rating (3-kV root mean square [RMS] or greater) is necessary to meet safety isolation where power is needed in circuitry connected to the AC mains or to 400- and 800-V batteries. Application examples include isolated bias power in onboard chargers for electric
Get Price →An advanced guide to Understanding DC to AC inverters
The major disadvantage of direct current is the commutation problem which means it''s hard to produce electric power at high DC voltage. Doing so will require extra equipment, such as a rectifier and inverter. ... CHOOSING THE RIGHT DC-TO-AC INVERTERS. Safety is just as important as efficiency when dealing with electronics and appliances ...
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As the inverter is already rated to the ISO 26262 ASIL D level of functional safety, these additional ECU functions can be added in a reliable and safe manner. ... Power is related to speed: high torque at low speed is not high power, so even though the inverter is working hard there are fewer losses, even though the power is wildly varying ...
Get Price →Ways Of Safely Controlling an EV Traction Inverter
In this article we have considered safety requirements in three elements of an EV drive system, the motor control algorithm, motor interface and motor position, with examples of how the required ASIL level can be achieved with NXP microcontrollers, a safety power basis chip and intelligent gate drivers as in Figure 7.
Get Price →Safety concept for inverter system whitepaper
This paper will introduce this functional safety concept for HV battery electric vehicles, according to ISO 26262 recommendations regarding embedded safety system …
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The High Voltage (HV) open inverter is a novelty. It can be directly integrated into the vehicles drive unit, thus reducing weight and space requirements. ... Up to 460 V / 650 A peak AUTOSAR 4.0.3 compliant software architecture …
Get Price →DURACELL DR1000INV USER MANUAL Pdf Download
Page 3 1000/2000/3000 Watt High Power Inverters User Guide LCD Screen (1000 / 2000 / 3000 Watt Inverters) Your inverter features an easy-to-read LCD screen which indicates the charge level of your source battery, power draw of your connected items, and a troubleshooting guide (should a fault occur). More information on inverter faults can be ...
Get Price →9 Essential Precautions For Safe Inverter Installation & Use — …
Ground the Inverter Properly. Grounding is an essential safety measure that reduces the risk of electrical shock and protects equipment from power surges. Follow the inverter manufacturer''s instructions and adhere to local electrical codes for proper grounding techniques. This often involves connecting the inverter''s grounding terminal to an ...
Get Price →Inverter Safety Precautions in context of inverter power
However, their safe operation is crucial due to potential risks associated with high-voltage and high-frequency outputs. This article highlights essential safety precautions for …
Get Price →Understanding functional safety for gate drivers and …
functional safety standards define ways to assess the risk level. With these guidelines in mind, functional safety system designs may include power transistor protection circuits and gate driver diagnostics. ISO 26262 standards allow functional safety system designs to use devices in each TI functional safety category.
Get Price →Functional Safety: ASIL-D–Compliant Gate Drivers
The upper side of the diagram shows the ASIL-rated functional safety subassemblies, which include a power supply unit, a motor control block and the gate drivers. The power blocks (battery, input filter, two-level three-phase inverter, current monitoring and three-phase motor) are shown at the bottom of Figure 1.
Get Price →The Best Off-Grid Power Inverters Reviewed
Efficiency: A high-efficiency inverter maximizes power conversion, reducing energy wastage. Waveform Type: Decide between pure sine wave inverters or modified sine wave inverters, depending on the sensitivity of your electronics. ... With multiple built-in safety features, this inverter guarantees the protection of your appliances. 3.
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Maximum safety & reliability. The PEAK3 inverter focuses on what is most important – maximum yield and optimal plant availability. ... This 1,500 VDC inverter offers high power density in a modular architecture that achieves a …
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High Power Inverter Features The Mega-Guard High Power Inverter (HPI) is an advanced and compact inverter system covering the following drive applications: ... independent controllers and an independent safety system. The 1700V IGBT''s are controlled by a dedicated digital signal processor for four quadrant motor and generator control. In ...
Get Price →Safety design for modern vehicles – including EV/HEV
power steering (EPS) delivers advancement, but has new safety implications. In this technical white paper, Infineon will examine the Functional Safety process and how it impacts the design process for EVs and HEVs and look at two critical examples: EPS assist systems and the high power inverter that forms the drive train.
Get Price →Automotive, High-Power, High-Performance SiC Traction …
Automotive, High-Power, High-Performance SiC Traction Inverter Reference Design Description TIDM-2014 is a 800-V, 300 kW SiC-based traction inverter system reference design developed by Texas Instruments and Wolfspeed which provides a foundation for design engineers to create high-performance, high-efficiency traction inverter systems
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High voltage stand-alone inverter for Externally Excited Synchronous Machines (EESM). ... High power inverter for stator supply; ... Motor mode / generator mode; Inverter performance: up to 470 V / 600 A peak; Functional safety: ASIL …
Get Price →WHITEPAPER: High-Voltage Inverter Safety …
This paper will cover ISO 26262 methodology and consider the different work-products that NXP completed for this safety concept: · Item …
Get Price →Power inverter safety system concept for ISO …
As figure 1 shows, the power inverter is the main traction system of an electric vehicle. It controls the energy conversion between the electric …
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