Tracing the Evolution of BCM Module to an Advanced Automotive ECU
To completely understand how advanced body control module (BCM) aims to transform mobility, we need to look at the evolution of the BCM module.
The evolution of the automotive body control module has seen it grow from a simple set of switches and relays to a sophisticated, integrated system that controls a wide range of vehicle functions.
Adoption of the First BCM Module
In the early days of automotive electronics, body control systems were typically limited to basic functions such as headlights, turn signals, and door locks. These systems were typically operated by simple switches and relays, and there was no central control module to coordinate their operation. It is hard to say which OEM was the first to adopt the body control module as a single unit. However, General Motors is often credited with the tag of being the first of the OEMs to introduce BCM modules in their Cadillac cars.
Progression of BCM Module from a Standalone Module to a Unit Controlling Multiple Functions
In the late 1980s and early 1990s, OEMs began to introduce the first generation of BCM modules. These were small and were responsible for controlling a limited number of functions such as interior lighting, wipers etc.
By the early 2000s, BCM modules evolved into a more sophisticated unit and were able to control a wider range of functions, including climate control, audio systems, seats, power window etc. BCMs also began to be integrated with other vehicle systems, such as the engine control module and the transmission control module.
With the increasing integration of BCMs, automotive manufacturers began to adopt the Controller Area Network (CAN) bus as a standard communication protocol. The use of the CAN bus allowed for more efficient and reliable communication between the various ECUs including the BCM.
In recent years, advances in sensor technology have enabled even greater integration and functionality for BCMs. For example, modern BCMs can incorporate a range of sensors, such as light sensors, temperature sensors, and proximity sensors, to provide more accurate and responsive control of vehicle systems.
Road Ahead
Today’s advanced BCMs offer a wide range of features that greatly improve the driving experience, such as adaptive lighting, automatic climate control, and remote start. These features are made possible by the increased integration and sophistication of the BCM and other vehicle systems. The BCMs are likely to evolve at an increased pace now and assume a much important role as EVs and autonomous driving take centerstage.
