Are cars becoming more like smartphones? Read as we investigate the software-defined car
Soon, ECUs appeared elsewhere, controlling things like ABS, lighting systems, stability control systems and then electronic transmission controls. Today’s cars are awash with them and some have nearly 100 ECUs dotted around, each doing a specific job.
Instead of all the wiring needed to connect each individual electrical device on the car, plus all the associated wiring for switching things on and off and connecting sensors, the introduction of the CAN allowed each individual ECU controlling its own group of equipment to be connected by a couple of signal wires. The problem now is that the complexity of cars needs something more sophisticated.
The physical change will be substantial. Replacing the 60-80 ECUs Renault says its cars have today, there will be a central computer with more power and flexibility than it needs at the car’s inception, giving it the capacity for future upgrades and the ability to cope with huge amounts of data.
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