AnswerID: 65926 Submitted: Thursday, Jul 01, 2004 at 10:53
Member - Captain (WA)
replied:
Hi Waynepd,
I have the Hayes Lumerz Energise III electric brake contoller. It is a true "motion sensing" unit plus has manual overide. I believe they are around ~$150, but I have had mine for several years so not sure about exact cost.
When buying a brake controller, there are two main types, the "time" based and "motion sensing". Additional features are manual overide (must have IMHO).
A time based controller simply applies a proportion of brake percentage for first ~2 seconds (not sure of exact time) and then increase brake effort regardless of vehicle speed or rate of slow down. They have a setup wheel to adjust the relative proportion of brake % (a heavier van needs more % than a lighter one, or when on different surfaces - bitumen/gravel). These units are very simple and relaible, but IMHO do not offer the correct amount of braking for different conditions.
Motion sensing, like the Hayes Energise III, has a sensor that measures the rate of decelleration. If only gently applying the brakes, only a small force is applied. if a panic stop, maximum braking is applied. If stopped at lights but foot still on brake, only minimum brake % applied. Additionally, this unit has a hand overide so the electric brakes can be applied independently of the vehicle brakes, great if the van gets the wobbles up, simply apply only the van brakes and it straightens instantly.
Also, it has the gain control (pretty sure all units have) to adjust the proportion of brake effort.You only need to set this up once each trip to proportion the brake effort as it varies depending on the weight in the van (is very easy to do). When going from bitumen to gravel, I find I have to adjust the gain control as otherwise the van wheels lock up a bit early.
As for the Tekonsha, while I have heard of this brand, I do not know what type it is or what features it has. I have had the Energise III for several years and it has also worked very well (think it has 5 years warranty) and can thoroughly recommend it from experience.
Cheers
Captain
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