# TRIZ Puzzles and Examples: Part 2 Reader's Solutions The Tiny Car

| On 17, Oct 1998

Jacob Skir

First of all, my congratulations to all the three readers for their understanding the TRIZ fundamental rule: not to insert new materials but to use the given ones.

1. Mr. Jose M. Vicente from Valencia suggests using folding material that absorbs energy. Fine! Thatâ€™s not the “control” solution but it does not negate the “control” one. By the way, it would be useful to formulate the items for the further research: in this case, material that absorbs energy while folding.

2. Mr. Fred Strauss: “Put the motor in the back like in a VW Beetle”. OK, we protect the engine and yet we donâ€™t protect the passengersâ€¦

3. Mr. Nathan Gibson from the North Carolina State University made use of the Contradiction Table and came to the Spheroidality Principle. Who knows, maybe weâ€™ll see such a car in the future. The only request is to present the solution in detail, e.g., with the help of a picture.

4. Mr. Eric Sloan: “The engine would be designed to move under the car on impact.” This is the exact “control” solution. Thus the Smart car is built, a joint venture between Daimler-Benz and the Swiss-based Microelectronics and Watchmaking Industries, the maker of Swatch watches.

“A two-seater less than 5 feet long, the Smart car claims to retain the crashworthiness of a full-size sedan. Instead, the Smart car sandwiches its powerplant under the floor; this raises the passenger compartment above the impact area in a collision with a passenger car. The powertrain is mounted on a sliding rack to diminish the force of a collision.” (Popular Science – January 1998 – P. 82).

In short: instead of solving the problem along one dimension (i.e. a horizontal line – from the front to the rear) – they solve the problem along the second – vertical – dimension.