Method and apparatus for avoiding electrical resonance in a vehicle having a shared high-voltage bus

一种电谐振、总线的技术，应用在通用动力装置的多个不同原动机的布置、车辆部件、车辆储能等方向

Active Publication Date: 2011-05-11
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If any power electronic converter within the HV system generates a frequency component on the common DC bus that falls within the resonant frequency range, the DC bus will be excited and cause electrical resonance

Method used

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  • Method and apparatus for avoiding electrical resonance in a vehicle having a shared high-voltage bus
  • Method and apparatus for avoiding electrical resonance in a vehicle having a shared high-voltage bus
  • Method and apparatus for avoiding electrical resonance in a vehicle having a shared high-voltage bus

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Embodiment Construction

[0057] Referring to the drawings, wherein like reference numerals correspond to like or similar parts throughout the several views, figure 1 A high voltage (HV) propulsion vehicle 10 is shown. The vehicle 10 may be configured as a hybrid electric vehicle (HEV) in one embodiment shown, the vehicle 10 includes a controller (C) 11 having features adapted to avoid electrical resonance on a common HV direct current (DC) bus 29 Algorithm 100, as described below.

[0058] When configured as an HEV as shown, the vehicle 10 may include an internal combustion engine (E) 12 having an input member (not shown) and an output member 15 . The vehicle 10 includes a transmission (T) 14 having an input member 22 and an output member 24 . The output member 15 of the engine 12 is selectively connectable to the input member 22 of the transmission 14 via a torque-transmitting mechanism 18 . The transmission 14 may be configured as an electrically variable transmission (EVT) or any other suitable ...

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Abstract

A method for avoiding electrical resonance in a vehicle having a high-voltage (HV) direct current (DC) bus shared by a first and a second power electronic converter device, such as an air conditioning compressor module (ACCM) and a traction power inverter (TPIM), includes determining an impedance characteristic of the bus, defining resonance points for the bus, selecting lower and upper switchingfrequency boundaries for the TPIM, and preventing the TPIM from operating within a range defined by these boundaries. A vehicle includes the first and second power electronic converter device, e.g., the APPM and the TPIM, the shared HV DC, and a controller having the algorithm set forth above, wherein the controller is adapted for avoiding electrical resonance in the HV DC bus by executing the algorithm.

Description

technical field [0001] The present invention relates to power flow control on high voltage propulsion vehicles, and in particular to methods and apparatus for avoiding electrical resonance in vehicles having a high voltage (HV) bus shared by multiple HV power electronic converter devices. Background technique [0002] In certain high-voltage propulsion vehicles, such as hybrid-electric vehicles (HEV), plug-in hybrid electric vehicles (PHEV), and electric vehicles (EV), relatively high-voltage (HV) power sources such as batteries or other electrochemical energy storage devices), providing a source of at least a portion of the required propulsion power. If so equipped, the engine can be selectively shut down to conserve fuel when the vehicle is idling or parked, and / or the vehicle can run entirely on electrical power provided by the HV power source, depending on the vehicle's design. [0003] In order to provide sufficient electrical power to propel the vehicle and energize t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/14B60L9/02
CPCB60K6/48B60L15/20B60L2270/145B60L50/16H02M1/44Y02T10/62Y02T10/64Y02T10/7072Y02T10/72Y02T10/70
Inventor M·N·安瓦S·E·舒尔茨S·N·格林J·E·塔钦斯基
Owner GM GLOBAL TECH OPERATIONS LLC
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