MAHLE Developing High-Voltage Traction Motors for Electric Vehicles

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MAHLE Developing High-Voltage Traction Motors for Electric Vehicles

The company also is developing 48-volt drive motors for new-generation hybrids.

Counterman Staff
By Counterman Staff
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MAHLE is developing high-voltage traction motors for fully electrified vehicles (EVs) as well as 48-volt drive motors for new-generation hybrids, according to the company.

J.D. Kehoe, director of product development, filtration and engine peripherals for MAHLE Filter Systems in North America, said more internal-combustion engine (ICE) downsizing, 48-volt hybridization and electric traction motors are all affecting powertrain development.

MAHLE produces high-voltage and low-voltage traction motors for full-size vehicles, as well as for off-road two-wheel- and four-wheel-drive leisure vehicles.

“Downsized internal-combustion engines with higher compression, advanced combustion, high boost and electrified turbocharger actuation will be part of the automotive landscape for decades to come,” Kehoe said. “Smaller engines, for example, are expected to deliver 300 horsepower and 30 miles per gallon with a third less displacement.”

The MAHLE Group has components on 50 percent of the vehicles annually produced worldwide, according to the company.

Kehoe noted that 48-volt electrical systems also are gaining acceptance. To meet the challenge, MAHLE has developed electrified HVAC systems and electric auxiliary components such as electric oil coolers and hydraulic pumps. Even electrified riding mowers and material handling equipment have become more common.

MAHLE’s 48-volt drive systems are supplied with integrated electronics to govern a typical output of 14 kW (19 horsepower) and have been demonstrated on passenger vehicles such as the SMART.

EVs, whether the Chevrolet Bolt, Nissan Leaf or Tesla, have achieved high market profiles, though actual sales hover at 2 to 3 percent of global deliveries, Kehoe said. On the other hand, analyst Alix Partners estimates that by 2023, more than 205 EV models will have entered the market.

MAHLE’s high-voltage traction motors for automobiles employ imbedded permanent magnet (IPM) technology. The motors are liquid-cooled and are governed by MAHLE-designed-and-patented liquid-cooled controllers.

Manufacturers may specify voltages from 200 to 400 volts, based on a motor’s battery pack. Power delivered by each motor, up to 100 kW (134 horsepower), will depend on vehicle design.

MAHLE also offers automakers higher-voltage motors. These IPM motors operate in the 400- to 800-volt range, with up to 96-percent efficiency and peak power output up to 180 kW, or 240 horsepower. The design is flexible and adaptable to customer requirements.

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Customer Service: How It’s Done

Customer service should be your number one priority, and it all starts with the greeting.

Eric Garbe
By Eric Garbe
Eric Garbe is a graduate of Columbus State Community College with a degree in Automotive Maintenance Technology. He has extensive independent and dealership field experience as a technician and shop owner and is an ASE Certified Master Technician and former Adjunct Automotive Professor. He has been professionally writing automotive technical articles and documents for many years and in his free time enjoys restoring old cars and creating custom interiors and upholstery.
Published:

This is always an important topic to discuss, because I consider excellent customer service one of the most important tools you can have to earn trust, respect and repeat business from the customers that come through your door. Whether that customer is do-it-yourselfer from across town or the professional repair shop across the street, your business depends on a solid relationship.It’s a subject that I am passionate about, and it’s one that many people are losing touch with. Whether you are communicating to someone in person, on the phone or using some type of social media, good customer service and bad can both exist. You can’t afford the latter, so this is the first in a series of topics which can and should be shared from the front of the shop to the back. No matter which role you hold, you represent the shop and yourself. Customer service should be your number one priority.First on the list is the greeting. From the second a customer walks in the door, they need to know you appreciate them coming in and how important they are to your business. First impressions are everything and here’s the correct way to do it each and every time: look them directly in the eye, smile and say hello!Of course, you can say “Good morning” or “Welcome to Joe’s Autocare,” but it should be a formal greeting and the most important thing is that you have smiled, looked them in the eye and recognized that they have walked through the door.You should always retain a formal greeting until you are on a first-name basis with a customer. Only once you have established that level of relationship is it OK to use the less formal greeting of “Hi,” followed by the person’s name.This greeting does more than just indicate respect and appreciation for someone walking through the door. Most likely there are customers both new and old who are in earshot of your conversation. For newer customers, this continues to build rapport and reinforce their positive view of your shop; they see that you demonstrate respect and treat everyone in the same manner. For repeat customers, even ones that have been coming for years, the greeting is important because the way you treat them is the reason they continue to come.And when a long-time customer comes in and you greet them with “Hi [First Name],” this indicates your appreciation for them and that you’re glad to see them as a person, more than just a customer. New customers that witness this will see that your repeat customers are comfortable enough to be on a first-name basis, another indication of the trust they have in you.

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