Safety of Worry

In the eyes of a car repairman, worry-free is a good car. Why? After dealing with cars all day long and repairing cars all day long, I'm already tired of the power and control! A car repairman doesn't want to repair his own car if it's broken, and would rather ask others to repair it. In fact, this is professional burnout. Just like we are tired of our own life/work, we have no passion at all, and all our ideals and ambitions are defeated by reality. All that is left is carelessness in front of you, but poetry and fields are always far away! If you are a seller of electrical appliances, you will recommend to your friends the appliances with the most stable quality, not the most fancy appliances with the most functions. From the car repairman's own perspective, the most important thing is to be worry-free and not in bad condition, and everything else is just a cloud.

Japan is a small country with limited resources. Therefore, the Japanese manufacturing industry will be careful about budgeting. When doing the same thing, Japanese manufacturing will strive for excellence and try not to waste too much raw materials. In order to save raw materials, some parts will have a variety of raw materials, which is to reduce costs and reduce over-reliance on raw materials, just like good steel is used on the blade. For example, permanent magnet motors are inseparable from rare earths, but Japan’s rare earth resources are almost zero and all need to be imported. It is very dangerous if the raw materials cannot be used by themselves, so Honda developed a rare earth-free permanent magnet motor.

Our country is rich in rare earth resources, so we don’t have to worry about raw materials or develop rare earth-free motors. The same is true for cars made in Japan. If a car can be solved with a simple solution, it will never be solved with a complicated solution. The parts that can be saved must be simplified. If the problem can be solved with a dime, it will never be spent on a better look. We can solve it with only 2 cents, and try to make up for the shortcomings by optimizing the design.

Therefore, there are certain differences between the Japanese cars we see and the German cars. For example, the paint on Japanese cars is thin, soft, scratches when touched, and the bottom is exposed when touched. It is the thinnest paint on the car, bar none. Even the paint of domestic cars is thicker and harder than that of Japanese cars. The thickness of Japanese car sheet metal and other covering parts is also thinner or lower in strength than other cars. In 2020, everyone knows that the thickness of sheet metal does not determine the safety factor. This is also the epitome of how Japanese cars save materials. Stable

Japanese cars never like to adopt new technologies. For example, turbocharging technology has been popular for many years. When German cars and domestic cars used turbochargers on a large scale, Japanese cars just watched silently. You must know that Japanese cars were early to use turbines, and they were even criticized for installing turbines in racing cars. Suspended. The Ishikawajima superchargers used by most manufacturers are also provided by Japan.

Self-priming engines are mature and stable and do not tend to break down. Volkswagen, which was the first to use a turbocharger, suffered from short service life of the turbocharger, high engine failure rate, and high maintenance costs. Japanese cars of the same period used self-priming engines, which were very stable.

As a result, Japanese cars have a reputation for being durable. To this day, Nissan and Mazda still use self-priming engines + AT + CVT gearboxes, and never touch dual-clutch gearboxes. Those engines that use turbocharger technology will not be too radical in tuning. Toyota's parameters for engines with the same displacement are more conservative, and the book data are not pretty at all. Only the radical Honda is more avant-garde in tuning and always likes a few more horsepower. However, the 1.5T engine oil problem has never been perfectly solved. Generally speaking, the powertrain stability of Japanese cars has the upper hand.

A car not only has three major parts, but also is inseparable from the support of various electronic equipment and electronic components. When it comes to the application of electronic equipment, the principle of Japanese cars is still to keep everything simple and just use it enough. Take the lighting control circuit as an example. Japanese cars are basically controlled by relays and have fuses for overcurrent protection. It is the most basic circuit. Once the light breaks down, it is very easy to repair. You can basically replace the fuse and check the relay.

German cars are more complicated. The BCM module integrates light control. Instead of using a simple relay to control the headlight switch, there is also a protection circuit. For example, a single bulb can be controlled to turn on/off, and the power of the bulb can be controlled by adjusting the duty cycle to avoid bulb burnout and extend the life of the bulb. With loop current detection, if the bulb is damaged, the wiring harness is short-circuited, the current is abnormal, or the bulb model is incorrect, it can cut off the power supply by itself and function as an electronic fuse. Easy to repair

Precisely because of the simple design of Japanese cars, the failure rate is lower. The simpler things are, the less likely they are to break and have fewer fault points, while the more complex the equipment, the more likely they are to have fault points. Therefore, it is relatively simple to repair a Japanese car after it breaks down, and it is relatively complicated to repair a German car after it breaks down. Therefore, it is difficult to find a Japanese repair shop on the street, and most of them are German repair shops.

In other words, the owner of the repair shop likes you to buy German cars! The repairman who works in the repair shop likes you to buy Japanese cars, not only because they are durable, but also for another reason: they are easy to repair!