2022-07-01
Every five times a car fault is caused by a battery. In the next few
years, this issue will become more and more serious with telecontrol,
control of on/off engines, and the increasing popularity of automotive
technologies such as hybrid (electricity/gas).
In order to
reduce faults, it is necessary to accurately detect the voltage,
current, and temperature of the battery, preprocess the results,
calculate the state of charge and operating state, send the results to
the engine control unit (ECU), and control the charging function.
Modern cars were born in the early 20th century. The first car relied
on manual start-up, which required a great deal of strength and was
highly risky. The car's "hand crank" caused many deaths. In 1902, the
first Maintenance Free Battery starter motor was successfully developed. By 1920, all
cars had been started using electricity.
The initial use was
dry batteries, which had to be replaced when power was exhausted.
Shortly afterwards, liquid battery (ie, ancient lead acid batteries)
replaced dry batteries. The advantage of a lead acid battery is that it
can be recharged when the engine is working.
In the last
century, there was little change in Maintenance Free Lead Acid Battery, and the last
major improvement was to seal it. What really changes is the demand for
it. Initially, the battery was used only to start the car, honking and
powering the lights. Today, before the ignition, all of the car's
electrical systems are powered by it.
The p