Over the past month, there's been so much in the news about Tesla. This column from Joann Muller, who covers the auto industry for Forbes, caught my eye again recently:
It's not a direct quote (I don't think) from CEO Elon Musk that they will “school” Toyota on Lean manufacturing.
I'd suggest there's little evidence that Musk and Elon are even really trying Lean manufacturing as a strategy or a mindset. He's doing his own thing and will sink or swim accordingly.
If Elon thinks that “Lean” means automation, he'd be incorrect. There are no “lights out” factories that are “fully automated” in Japan, as some people seem to think. In my own visits to Japan, I've seen Toyota factories that are full of people. The Toyota plants, of course, have some robotics (in welding, painting, and for the conveyance of vehicles and some parts. But, it's said that Toyota plants are generally LESS automated than those of American automakers.
From the Muller article, published in February, Musk is quoted as saying:
“The competitive strength of Tesla long-term is not going to be the car; it's going to be the factory.”
Well, that factory currently seems to be quite the mess. It's a shame that Tesla couldn't combine a very innovative product with proven car-building technology from Toyota.
Sure, Tesla assembles battery packs and builds electric motors in the plant, but Tesla vehicles are built on assembly lines that don't have to be that radically different than the way Toyota does things.
Tesla could have used or built upon the management system that used to live (and thrive) under the same roof, when the Tesla factory used to be the NUMMI joint venture between Toyota and GM).
Right or wrong, Musk seems to want to do things his own way… figuring out a better way means the risk that different isn't necessarily better.
Musk also said:
“The car industry thinks they're really good at manufacturing and actually they are quite good at manufacturing. But they just don't realize just how much potential there is for improvement. It's way more than they think,” said Musk, calling the pace of today's auto factories slower than “grandma with a walker….Why shouldn't it at least be jogging speed?”
It's sort of sad that a company that is still struggling so much with what Musk calls “production hell” would talk trash about other automakers who have proven they can build products at scale. Elon's plant is the one that's slow and behind schedule, not meeting production goals.
“If he were to install all the robotic equipment to implement his vision, it would be a disaster,” says Jeffrey Liker, the retired University of Michigan professor whose 2004 book, The Toyota Way, outlined the principles of lean manufacturing that have influenced an entire industry. Ultimately, however, Liker believes that disaster will be averted “because smart people around him will discover (his ideas) don't work.”
Back in February, Musk was still bragging about parts conveyance automation (which is a different dimension of automation than robots doing welding or assembly):
“The next constraint” toward full production, Musk said, is a sophisticated automated parts-conveyance system at Tesla's Fremont, Calif., assembly plant, formerly a joint venture between Toyota and General Motors, and a showcase for lean manufacturing techniques in its heyday. Musk called the conveyor system “probably the most sophisticated in the world,” adding that it “appears to be on track.”
Musk, as a smart person, eventually figured this out, as he admitted his mistake about automation:
Yes, excessive automation at Tesla was a mistake. To be precise, my mistake. Humans are underrated.
— Elon Musk (@elonmusk) April 13, 2018
As I tweeted in response, Toyota never thought humans are underrated. More on that later.
Musk added, on automation:
“We had this crazy, complex network of conveyor belts,” Musk told CBS News. “And it was not working, so we got rid of that whole thing.”
So what happened between February and April? Was the conveyance “on track” or “not working?” Did it go from “on track” to “not working” at some point? Or was it never working?
If it wasn't working, or stopped working, at what point did Musk learn this? Was he being told by employees and leaders that things were fine? Was Musk not at “the gemba” (in the actual workplace) to observe this for himself? Of course, it's not necessary for a CEO to go confirm what he's being told about the status of “production hell,” not if it's an environment where people are free to speak up about problems.
Anyway, it's good to see that Musk might be learning from some of these admitted mistakes related to an overabundant love for robotics and automation. I mean, he could have learned that lesson from Toyota if he had asked during that timeframe when Toyota was an investor in Tesla.
They might have tried teaching him Toyota Way Principle #8:
“Use only reliable, thoroughly-tested technology that serves your people and process.”
Toyota tends to automate just the work that can be done better by robots or more safety by robots. Robots can't help improve the process. Robots and automation should support the people, not completely replace them. At Toyota, “Respect for People” is a core mindset. Is that the case at Tesla?
Musk doesn't have to completely reinvent the car assembly wheel in the process of reinventing the car.
More thoughts on Tesla to come on future blog posts, looking (again) at safety, writing “motivational” memos to workers, and the CEO sleeping in the factory…