Re: Towing with Hybrid?
The Toyota Highlander Hybrid uses regenerative braking as well as hydraulic braking: Here is information from Autoshop 101 I found by searching for Hybrid Brake Systems.
The hybrid vehicle brake system includes both standard hydraulic brakes and a unique regenerative braking system that uses the vehicle’s momentum to recharge the battery. As soon as the accelerator pedal is released, the HV ECU initiates regenerative braking. MG2 is turned by the wheels and used as a generator to recharge the batteries. During this phase of braking, the hydraulic brakes are not used. When more rapid deceleration is required, the hydraulic brakes are activated to provide additional stopping power. To increase energy efficiency the system uses the regenerative brakes whenever possible. Selecting 'B' on the shift lever will maximize regenerative efficiency and is useful for controlling speeds downhill. In ‘B’ mode about 30% of the energy is recovered.
If either the regenerative or hydraulic braking system fails, the remaining system will still work. However, the brake pedal will be harder to press and the stopping distance will be longer. In this situation, the brake system warning light will illuminate.
The battery will accept charge up to an instantaneous rate of 20 to 21 KWH. Much of the energy from light braking at high speeds and harder braking at lower speeds can be recovered. Excess energy over the charging limits is wasted as heat in the brakes just as in other cars. At this time there is no way for the customer to know the limit of regenerative energy recovery.
2003 Subaru Forester
2012 Toyota Highlander V6
2010 Escape 13 "Ladybug" Feb 2010