Fred Lambert. The company used this approach from the start when working on the Roadster. Like what it has been doing with battery cell technology, the automaker saw an opportunity to attach its product to improvements in transistor systems to gradually allow more powerful and efficient powertrains.
While the strategy served it well so far, Tesla is moving away from it with its third generation platform and consequently, with the Tesla Model 3. The company will be using new battery cells manufactured at its Gigafactory in Nevada and as it turns out, it also started from a blank sheet for its new inverter architecture.
The company made most of its drive inverter developments working on the Roadster. Every time we can push up the current in the inverter a little bit, we are able to get a little bit higher motor torque and that translate into a little bit faster 0 to 60 time, more responsive acceleration and those sort of things.
The engineer went on to describe how Tesla is using off-the-shelf power electronics for the system:. The method has been satisfactory for Tesla even for its latest inverter models. The latest inverter developed by the company was the unit for its dual motor which was also built on TO packages. Even though they still had to use the off-the-shelf power semiconductor packages, Tesla engineers were still able to make several improvements to the dual motor inverter compared to the one found in the RWD drivetrain, making it more compact and significantly reducing the total of unique parts.
The dual motor inverter architecture, the one for the new smaller front motor, is rated at a peak power capability of over kW.
Considering that Tesla now plans to produce as many ascars inthe volume is starting to make more sense for developing custom components for its power electronics.
He specified that this was a minimum for the base model and that higher-end versions of the Model 3 will feature better specs, even its own Ludicrous mode. The day before the unveiling event, we published an exclusive report based on an inside source accurately describing the Model 3 design. The same source revealed that at the time, Tesla was aiming for the higher-end dual motor AWD version of the Model 3 to achieve a time in under 4 seconds.
Our new details on the Model 3 powertrain are in line with these expectations. Pictures courtesy of Tesla and Tesla Motors Club. FTC: We use income earning auto affiliate links.The Truth About Tesla Model 3 Batteries: Part 1
Subscribe to Electrek on YouTube for exclusive videos and subscribe to the podcast. Be sure to check out our homepage for all the latest news, and follow Electrek on TwitterFacebookand LinkedIn to stay in the loop. Guides Tesla Tesla is a transportation and energy company. It sells vehicles under its 'Tesla Motors' division and stationary battery pack for home, commercial and utility-scale projects under its 'Tesla Energy' division.
The Tesla Model 3 is the first vehicle built on Tesla's third-generation platform.Tesla is always inclined to do things differently, and this applies to the motors it uses in its vehicles. EV engineers have carried on spirited debates about the merits of each technology, and many have speculated about why Tesla chose induction motors from day one.
Authored by Charles Morris. The opinions expressed in these articles are not necessarily our own at InsideEVs. Cocconi based it on existing AC induction motor specs.
First Up Close Look At Tesla Model 3 Drive Unit, Battery, Cooling & More
Tesla rarely offers official comment on technology decisions, so it can be hard to discern the exact engineering thought process. However, he did offer some interesting insights into the engineering processes the company employed in the analysis. Both make sense for variable-speed drive single-gear transmission as the drive units of the cars. This is because for the specification of the performance and efficiency, the permanent magnet machine better solved our cost minimization function, and it was optimal for the range and performance target.
When your equilibrium of cost changes, then it directly affects your motor design, so you justify efficiency in a more expensive battery. Your optimization is going to converge on a different motor, maybe a different motor technology. Once you know that, you can use advanced computer models to evaluate everything with the same objectives. This gives you a panoramic view of how each motor technology will perform.
Then you go and pick the best. These parameters are related to performance, energy consumption, body design, quality, and costs. All of these metrics are competing with each other in a way. Ideally, you want them to coexist, but given cost constraints, there need to be some compromises.
The electric car has additional challenges in that battery energy utilization is a very important consideration. You can pick among all the options to get the best motor for the constraints.
If we model everything properly, you can find the motor with the high-performance constraint and the best possible highway efficiency. To find answers for these tough engineering questions, Tesla uses sophisticated custom computer simulations that run custom algorithms designed in-house.
Our Tesla Model 3 Is Up and Running Again after Getting a New Rear-Motor Assembly
Home Tesla Model 3 News General. About this article Category General. Tesla Model 3. Sign In or Sign Up.I recently had the chance to test drive a Tesla.
Not like any Tesla, the super-powered one: S85PD. Even though there was no Ferrari at the traffic light we stopped at, I can trust the fact that it can compete with many supercars.
And as a power electronics market analyst, I had to ask the sale guy about inverter and power modules. He knew a lot about the car and its features which is enough to sell it but not about the inside of the inverter, the power train, or the car…. So I asked Siri Google, and I had answers. I ended up on a Tesla car owners forum.
I looked into it, and I found pictures and description of the inverter. Like the the picture down here. Engineers just made an awesome car with very simple off-the-shelf products. Do not look for any highly special package for power modules International Rectifier now-Infineon would have made specially for Elon Musk just because he is Elon Musk.
There is no such thing. They used year-old power module packaging technology to build the fastest electric luxury car on earth. I was shocked again! So I went on the internet and asked a very dumb question on the Power electronics group of LinkedIn. I wish we had that feature. And for those of us who are not hanging out in this virtual professional world of LinkedInI wanted to summarize discussions here.
The first power module packaging design question is to know if you are going to use a power module or not. But according to the attendees, the choice of going for TO-series package rather than well-marketed EV series of power modules were:.
Which is in total accordance to any engineer mind designing a product to:. As the rest of the design is not engineering work … most of the time. Most comments agree on the fact that a power module is a great thing, with a lot of room for innovation and many great features. But they also agree on the fact that there are other factors to think about, when going for a design in power electronics, depending on the applications. Still you have interesting feedback putting down some preconception on power modules:.
For most of the participants in the discussion, the choice of TO totally made sense, but not always for the same reasons:. The point is not actually to try to find the right one, but to think about it. We are inand we still find so many reasons why discrete TO packaging could be a very good choice.Sandy Munro, a teardown specialist and auto industry veteran, is releasing the results of a study he conducted with battery expert Mark Ellis comparing the motors inside four electric vehicles, one of which was a Tesla Model 3.
Despite analyzing the vehicle for a long time, the auto expert states that there are still mysteries that he is yet to uncover on the electric sedan. The Tesla is a big mystery. One of the clever features Munro and Ellis discovered in their Model 3 teardown was the disconnect device for the high voltage. Also, the inner magnets of the Model 3 motor were found to be under a lot of stress, which is not something other manufacturers have learned to do in high volume production.
The BMW i3 was hit particularly hard and cited as the heaviest, most expensive, and very inefficient overall. Tesla eventually issued a statement in response to the criticisms, indicating that significant improvements had been made to its Model 3 manufacturing process which would render moot many of the issues identified.
Analyst Philippe Houchois noted Audi e-tron customers face more delivery delays, fines for canceled orders: report. Recent Most Popular News SpaceX's next launch ready to go just weeks after in-flight engine failure Just weeks after SpaceX suffered its first in-flight rocket engine failure sincethe To Top.Fred Lambert. Now we get a great visual look at the powertrain through a new teardown. Tesla Model 3 drive unit subframe Tesla Model 3 drive unit from back side Tesla Model 3 drive unit high voltage connector Tesla Model 3 drive unit high voltage connector 2.
Ingineerix says that he weighed the whole drive unit and that it weighs just under lbs. Here we see it without the inverter. Model 3 Drive unit bare Model 3 Drive unit bare Model 3 drive unit oil filter Model 3 drive unit plate stack heat exchanger. Model inverter housing model 3 inverter high voltage connector Model 3 inverter board Model 3 inverter bus bars. Model 3 battery pack electronic housing Model 3 battery pack electronic housing opened Model 3 charge port connector on the battery pack Model 3 pyro fuse.
Model 3 cooling system reservoir assembly Model 3 liquid cooling connection to computers Model 3 battery pack cooling line which then splits into 4 connections to the pack Model 3 cooling connection to the battery pack electronics penthouse Model 3 cooling connection to the inverter. FTC: We use income earning auto affiliate links. Subscribe to Electrek on YouTube for exclusive videos and subscribe to the podcast. Be sure to check out our homepage for all the latest news, and follow Electrek on TwitterFacebookand LinkedIn to stay in the loop.
Guides Tesla Tesla is a transportation and energy company. It sells vehicles under its 'Tesla Motors' division and stationary battery pack for home, commercial and utility-scale projects under its 'Tesla Energy' division.
The Tesla Model 3 is the first vehicle built on Tesla's third-generation platform. It aims to reduce the entry price for electric vehicles while not making any compromise on range and performance.
Through Zalkon. July 26, Tesla Model 3 teardown gives incredible look at the electric powertrain Fred Lambert - Jul. Tesla Model 3 drive unit from back side.
Tesla Model 3 drive unit high voltage connector. Tesla Model 3 drive unit high voltage connector 2. Model 3 Drive unit bare. Model 3 drive unit oil filter. Model 3 drive unit plate stack heat exchanger. Model inverter housing. Model 3 inverter board. Model 3 inverter bus bars.
Model 3 battery pack electronic housing. Model 3 battery pack electronic housing opened. Model 3 charge port connector on the battery pack. Model 3 pyro fuse. Model 3 cooling system reservoir assembly.SinceSystem Plus Consulting engineers have been analyzing and modeling the production cost and selling price of integrated circuits, electronic boards and systems.
Available reports The first SiC power module in commercialized electric vehicles. The best solution currently available to the automotive industry is the electrification of vehicles, with different levels of electrification depending on the strategies of different car manufacturers. Standard inverter power modules integrate silicon IGBTs, but in electric vehicles the available space in the engine compartment is often so limited that it is difficult to accommodate a power control unit PCU.
Thanks to higher thermal and electrical performance, SiC is the new competitor to silicon at high voltages. Nevertheless, high power densities need high thermal dissipation and thus new packages are needed to improve device performance. To achieve these targets, manufacturers have developed different solutions, such as limiting wire bonding or using overmolded structures to efficiently cool the power semiconductor chips. Tesla is the first high-class car manufacturer to integrate a full SiC power module, in its Model 3.
Thanks to its collaboration with STMicroelectronics the Tesla inverter is composed of 24 1-in-1 power modules assembled on a pin-fin heatsink. The module contains two SiC MOSFETs with an innovative die attach solution and connected directly on the terminals with copper clips and thermally dissipated by copper baseplates. It highlights the differences in design of the packaging and the material solutions adopted by the two companies. Follow us :.
Reverse costing. Report Catalogue. Services Reverse costing Reverse costing modules, boards, systems Reverse costing devices Technology analysis Costing Methods Trainings. Contact Us.Range NEDC est. Dual Motor. Safety is the most important part of the overall Model 3 design. The metal structure is a combination of aluminum and steel, for maximum strength in every area. In a roof-crush test, Model 3 resisted four times its own mass, even with an all-glass roof: that's the same weight as two full-grown African elephants.
Model 3 is built from the ground up as an electric vehicle—with ultra high-strength steel and a low, solid centre of gravity. A material mix of aluminum and steel help to achieve the best structural rigidity, and increased occupant safety. Combined with impact-absorbing rails and center pillar reinforcements, the strength and support of the rigid battery pack provides protection from every side.
The position and weight of the floor-mounted battery pack provides a very low centre of gravity—allowing for a very low rollover risk. Top Speed. Dual Motor All-Wheel Drive instantly controls traction and torque, in all weather conditions.
Includes Michelin Pilot Sport 4S tires, larger, more powerful brakes and lowered suspension for enhanced handling and performance. Independent motors digitally control torque to the front and rear wheels. Independent Motors. Dual motors respond to changing conditions in as little as 10 milliseconds.
Torque Response. Unparalleled traction and control, in all weather conditions. All-Weather Control. Tesla All-Wheel Drive has two independent motors. Unlike traditional all-wheel drive systems, these two motors digitally control torque to the front and rear wheels—for far better handling and traction control.
Your car can drive on either motor, so you never need to worry about getting stuck on the road.
If one motor stops working, you can safely continue to your destination with the second. Go anywhere with up to km of range NEDC est. Recharge km in 30 minutes at Supercharger location.
Recharge mi. Superchargers placed along well-traveled routes around the world. Model 3 is fully electric, so you never need to visit a petrol station again. If you charge overnight at home, you can wake up to a full battery every morning. Rear, side and forward-facing cameras provide maximum visibility. Degrees of Visibility. Forward-facing radar provides a long-range view of distant objects. Detects nearby cars, prevents potential collisions and assists with parking.