2021 GMC Hummer Pickup EV is a Monster (1,000HP)

hummer EV

“Those headlines above tell you just about everything GMC is ready to share at this point about Hummer's resurrection as an electric pickup truck. That is, aside from the photo you see here of the truck's front end and four 15-second videos (watch them below) that will presumably comprise a promised Super Bowl ad for it. One thing's for sure—the truck could be even more awesome-looking than we imagined.

We've been speculating about the new Hummer for months, and earlier reporting indicating the Hummer electric truck would be build at GM's Detroit-Hamtramck assembly plant alongside other electric GM pickups has now been confirmed by GMC to have been accurate. Beyond the pickup's Super Bowl commercial appearance, GMC further announced that the Hummer project will be fully unveiled on May 20, 2020…”

 
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WHAT IS OIL AERATION?
WHAT IS OIL AERATION?

Air contamination in oil is a serious condition. There are five problems associated with aerated oil that can be deadly to lubrication components, like oil pumps.

WAYS TO MEASURE OIL AERATION
WAYS TO MEASURE OIL AERATION

With proper measurements one can quantify the susceptibility of one's design or component to the negative effects of aeration.

HOW TO INTRODUCE OIL AERATION
HOW TO INTRODUCE OIL AERATION

There are a number of ways to introduce air into the oil to obtain a certain level of aeration. There are two predominant methods for achieving oil aeration: suction port t-fitting and direct injection.

DOES AERATION LEAD TO CAVITATION?
DOES AERATION LEAD TO CAVITATION?

Apart from the ingress of debris, the greatest danger to any design of a pump is cavitation. The phenomenon can be found in centrifugal (i.e. impeller) or positive displacement (i.e. gear, gerotor or vane) pumps, in both oil and coolant applications. Excessive cavitation can lead to erosion damage. It is important to understand how cavitation occurs as there are some misconceptions and confusion on this topic.

CONTAMINANTS WREAK HAVOC IN OIL
CONTAMINANTS WREAK HAVOC IN OIL

The major purpose of lubrication oil is to provide low bearing friction, to transfer heat and to protect components from corrosion. Contaminants will affect the oil’s ability to meet these requirements.

OIL AERATION HURTS EFFICIENCY
OIL AERATION HURTS EFFICIENCY

Many OEMs are battling to improve vehicle durability, increase efficiency and reduce noise, but are struggling to find the answers. Unfortunately, many of the recent design trend are forcing higher aeration levels, and far too many OEMs are unaware. 

In the pursuit of greater efficiency, many OEMs are making design decisions that may amplify the effects of oil aeration. Air bubbles may seem benign, but they can detrimentally affect the performance and durability of engines, drivelines and hydraulic equipment.  

EV Component Testing Challenges - From 12 to 800VDC
EV Component Testing Challenges - From 12 to 800VDC

As the global interest for clean energy alternatives increases within the automotive industry, so does the requirement of efficiently storing electricity. The latest trends in electric vehicle technology have led to the development of high-voltage storage solutions, all backed by the need for increased efficiency and quicker charge times.

Engine Oil Pump Production Testing - CASE STUDY
Engine Oil Pump Production Testing - CASE STUDY

ATA Inc. was awarded a project from an existing client to build test systems for production verification testing on six different engine oil pump models. We delivered on the client's needs for an accurate and interchangeable tool to verify pump performance and functionality using a grouping layout for the individual test cells, and by employing laser marking stations.

Torsional Vibration in shafts and other mechanical systems
Torsional Vibration in shafts and other mechanical systems

Torsional Vibration in shafts and other mechanical systems

The torsional vibration of a crank or motor shaft is an important factor in the suitability and reliability of a system design. Finite element modelling can predict the natural vibration and forced vibration based on the expected harmonics and speeds. However, modelling can only go so far, and oftentimes a measurement setup is required, such as ENSURE, for physical validation of the key assumptions.

Pulsation in pipes and other hydraulic systems
Pulsation in pipes and other hydraulic systems

Pulsation in pipes and other hydraulic systems

Pumping and system pulsations are an important factor in the suitability and reliability of a design. Finite element modelling can predict the natural waves and forced waves based on the expected pump harmonics, geometries and speeds. However, modelling can only go so far, and oftentimes a measurement setup is required, such as ENSURE, for physical validation of the key assumptions.

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