Integrated Motor Assembly with Compliantly Mounted Power Inverter
a technology of integrated motors and power inverters, which is applied in the direction of electric propulsion mounting, electric devices, propulsion by batteries/cells, etc., can solve the problems of reduced level, many inherent limitations of such a power source, and vehicle still emitting harmful pollution
Active Publication Date: 2015-08-13
ATIEVA USA INC
View PDF13 Cites 29 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The present invention is an integrated drive assembly for an electric vehicle that separates the power inverter from the motor and transmission. The power inverter enclosure is connected to the motor through flexible bushings, which allows for compliant coupling. The inverter support members can be attached to the motor or the transmission enclosure using bolts, weld joints, or braze joints. This design simplifies the process of attaching the inverter to the vehicle, and allows for improved performance and efficiency. The transmission can be a single speed, fixed gear transmission, and may be coupled to first and second drive half shafts.
Problems solved by technology
While hybrid vehicles provide improved gas mileage and lower vehicle emissions, due to their inclusion of an internal combustion engine they still suffer from many of the inherent limitations of such a power source.
For example, during operation the vehicle still emits harmful pollution, albeit at a reduced level compared to a conventional vehicle.
Additionally, due to the inclusion of both an internal combustion engine and an electric motor(s) with its accompanying battery pack, the drive train of a hybrid vehicle is typically much more complex, resulting in increased cost and weight.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0013]In most electric vehicles (i.e., EVs), regardless of whether the EV is an all-electric vehicle, a plug-in hybrid vehicle, also referred to as a PHEV, or a hybrid vehicle, also referred to as a HEV, the motor and the power inverter are maintained as discrete components mounted within separate housings and typically mounted in completely different regions of the vehicle. In at least one alternative configuration, however, a single, multi-piece enclosure is used to house both the electric motor and the power inverter, where the motor and inverter are each rigidly coupled to an interposed transmission.
[0014]While integrating the motor, transmission and power inverter into a single housing shortens the electrical connection between the power inverter and the motor and may also simplify system cooling, the present inventor has found that using separate housings for the inverter and the motor and coupling those separate housings together using a compliant mounting scheme provides dis...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
An integrated drive assembly for an electric vehicle is provided, where the power inverter enclosure is separate from the motor and the transmission, and where the power inverter enclosure is coupled to, and separated from, the motor via a plurality of inverter support members. Each of the inverter support members is rigidly coupled to the transmission enclosure and compliantly coupled to the power inverter enclosure using a plurality of flexible bushings.
Description
FIELD OF THE INVENTION[0001]The present invention relates generally to electric motors and, more particularly, to an integrated motor assembly for use with an electric vehicle.BACKGROUND OF THE INVENTION[0002]In response to the demands of consumers who are driven both by ever-escalating fuel prices and the dire consequences of global warming, the automobile industry is slowly starting to embrace the need for ultra-low emission, high efficiency cars. While some within the industry are attempting to achieve these goals by engineering more efficient internal combustion engines, others are incorporating hybrid or all-electric drive trains into their vehicle line-ups. To meet consumer expectations, however, the automobile industry must not only achieve a greener drive train, but must do so while maintaining reasonable levels of performance, range, reliability, and cost.[0003]The most common approach to achieving a low emission, high efficiency car is through the use of a hybrid drive tra...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(United States)
IPC IPC(8): B60L11/18
CPCY10S903/906B60L11/1803B60L2220/50H02K11/33B60L50/51Y02T10/64Y02T10/70
Inventor RAWLINSON, PETER DORE
Owner ATIEVA USA INC