You probably already know that it requires more than simply the tow vehicle’s brakes to quickly and completely stop both the tow vehicle and its trailer. It is evident that the trailer must contribute with its own braking power when weight and speed are taken into account. The trailer’s brakes, which can be mechanical or hydraulic surge brakes that use inertia to automatically slow down, or electric brakes that operate with an electrical connection to the towing vehicle, are used to achieve this. Surge brakes, commonly referred to as override or overrun brakes, work on a straightforward premise.
Commonly referred to as override or overrun brakes, work on a straightforward premise. When the vehicle slows down, the sliding shaft in the coupling attached to the tow ball slides and applies pressure to a mechanical linkage also known as mechanical brakes or a linkage connected to a hydraulic cylinder, which applies hydraulic pressure to the braking system known as hydraulic brakes. The majority of the time, these are on boat trailers. On the other side, electric trailer brakes function by engaging electromagnetic brake drums to produce attrition and so slow the trailer. Override brakes work independently, but electric trailer brakes require an electrical connection to the towing vehicle and are controlled by an electric brake control unit.
A trailer’s electric brakes are activated and controlled by an electronic device called a brake controller, as the name suggests. A brake controller can be divided approximately into an interface that is located in the driver’s line of sight and a major component that is in charge of applying the trailer’s brakes. Essentially, there are two sorts of electric brake controllers: non-proportionalor time-based, and proportional or inertia-based.
The more recent redarc tow pro switch insert, however operate independently of the vehicle’s brakes and use an accelerometer to measure the changing momentum, of the moving vehicle. These controllers continuously track the dynamics of the tow vehicle and transmit the exact amount of electricity to the trailer brakes to make sure the trailer travels at the same pace.
This often results in a smoother braking experience and more effective braking, extending the lifespan of your trailer brakes. Inertia-based brake controllers detect when the vehicle is slowing down rather than when the vehicle’s brakes are applied and adjust the trailer braking power accordingly. For example, when traveling downhill, you should engage lower gears to slow down to reduce brake wear.
While still being accessible from the driver’s seat, the interface would be positioned in the least noticeable location possible inside the cab. Traditionally, this would be done by drilling holes into the dashboard, fastening the mounting brackets that were provided
with screws, and then attaching to these brackets. The wiring would then be joined to the wiring loom of the vehicle and run to the trailer plug at the back of the vehicle. This resulted in the requirement to install a new brake controller each time a different vehicle was used to tow a trailer, such as when the trailer was rented, borrowed, or upgraded.