Jerky Accelerator Foot

They say that “necessity is the mother of invention,” and never was that more true than for Ralph Teetor. The circumstances of his invention were of overwhelming necessity…to say the least. Teetor was blind, and because of that, he was forced to accept rides to wherever he chose to go. His friend, Harry Lindsay, who didn’t mind driving Teetor around, but who also had a notoriously “jerky accelerator foot.” Teetor couldn’t figure out why, Lindsay couldn’t keep the car at a consistent speed. When you think about it, a car that is being driven in a jerky manner would be a bit scary for a blind passenger, who has no idea why they might be possible stopping suddenly… or even if it just seems like they are stopping suddenly.

For Teetor, the possibility of things changing was impossible. He was not going to magically get his sight back, so something else had to change. Teetor was no stranger to the idea of inventing things. At the age of five, he endured a terrible accident, which left him in his disabled condition. He was incredibly young age, but Teetor refused to allow an accident to keep him from living a full life. At age 12, he was featured in the December 21, 1902 edition of the New York Herald for building a one-cylinder car to scoot around in his neighborhood. Here is how the Herald described him in 1902: “A constructor of miniature dynamos and other machinery at 10 and thoroughly versed in all that pertains to their operation, and at 12 the builder of an automobile that carries him about the streets of his native town and far out upon the country roads at a speed of from 18 to 25 miles an hour, is the remarkable record of Ralph Teetor of Hagerstown, Indiana.”

Teetor set out to solve his problem. He invented what we know today as the automobile cruise control system, which is an outer control loop that “takes over” control of the throttle…a task normally exercised by the driver through the accelerator pedal. Unlike the driver of the vehicle, the cruise control holds the vehicle speed steady at a set value. The invention worked perfectly on the first try, but being a perfectionist, Teetor spent the next decade tinkering with his design. By 1958, he had finally perfected his invention. Nevertheless, Cadillac began rolling it out in all of their cars by 1950. The only part of his invention that Teetor ever struggled with was the name. At first, the invention was known by “a host of names more suited for the Wiley Coyote: Speedostat, Touchomatic, and Auto-pilot.” Eventually, the designers at Chrysler came up with “cruise control.” It wasn’t flashy, but it was also less likely to be mistaken for “a kitchen appliance.” Teetor decided that sacrifices just had to be made sometimes. So now you know that the cruise control…the gas-conserving savior of long-distance drivers everywhere, actually came from one man’s pet peeve. I would imagine that if you were blind, and being thrown around in your seat because you couldn’t drive yourself, you might be pretty grouchy, too.