1. Engine Development:
Karl Benz designed a four-stroke internal combustion engine, based on the principles outlined by Nikolaus Otto. This engine used gasoline as fuel and yielded around 0.75 horsepower.
2. Chassis Construction:
The Patent-Motorwagen had a three-wheeled design with a tubular steel frame. The rear wheels were connected to the engine, while the front wheel served as a steering mechanism. The chassis was lightweight, weighing approximately 264 pounds.
3. Transmission and Steering:
Benz's vehicle utilized a simple belt drive system with two forward gears and one reverse gear. The driver controlled the direction of the car by turning a tiller-style steering mechanism, similar to that used on a boat.
4. Suspension and Brakes:
The Patent-Motorwagen lacked any form of suspension, resulting in a bumpy ride. Instead, it had a rigid axle with leaf springs for cushioning. Braking was achieved through wooden blocks that pressed against the rear wheels.
5. Bodywork:
The car had an open-top, lightweight body made of sheet metal and wood. The driver's seat was located at the front, while a seat for passengers was positioned behind the driver's seat.
6. Ignition and Fuel System:
An electric spark plug provided ignition for the engine, and a carburetor mixed air and fuel for combustion. Fuel was stored in a small tank mounted on the rear of the vehicle.
7. Testing and Refinement:
Karl Benz and his wife, Bertha Benz, conducted extensive testing and modifications to the vehicle, including the famous 1888 journey from Mannheim to Pforzheim, Germany, considered the world's first long-distance road trip.
8. Commercial Production:
Following successful trials and improvements, Karl Benz began producing and marketing the Patent-Motorwagen in 1888. However, the practical adoption and development of automobiles gained momentum in the following years with contributions from other inventors and companies, such as Gottlieb Daimler, Wilhelm Maybach, and Henry Ford, who introduced mass production principles.
The Benz Patent-Motorwagen paved the way for further innovations and advancements in automotive technology, shaping the transportation landscape of the 20th century and beyond.