[robrandon]

Hello all,

CRV 2018 EX. Is there an actual "Emergency Brake". I'm aware of the parking brake as well as the brake hold.

Fortunately in my experience I've never had to use the emergency brake in the past, but going way back, this was actually taught in driving school.

Has this gone away? If your brakes fail, can you engage the parking brake? Is it a separate cable that runs to the brakes, or does it use the same system?

Thanks!

Rob

 

[sirwired]

You cannot activate the parking brake while driving. If you hold up the p-brake switch, the car will use the ABS pump to actuate the brakes to a complete stop, and then the p-brake will be activated.

So, it'll still use the hydraulic braking system, but it will do so in a different way vs. pressing on the pedal, so a failure of the electric brake booster can still be compensated for.

 

[Mike728]

Emergency brake
The emergency brake was originally intended for one particular emergency and that was "no other way to stop", as was the case when the footbrake suddenly failed due to a loss of hydraulic pressure or other issue. Drivers had to respond when brakes failed, so they were expected to learn how to stop a speeding vehicle using the emergency brake alone. Safety regulations became almost universal by 1980, so modern brake systems are very reliable, using dual-circuit hydraulics and more recently low-brake-fluid sensors.[4] As modern brakes no longer cause emergencies in normal contexts (a brake warning light comes on after the first sign of trouble)[citation needed], it is no longer necessary for the average driver to learn to use this brake for emergencies.

Some drivers benefiting from the "park" function on their automatic transmissions do not use this brake at all (daily use of the parking brake is recommended, to ensure it does not seize up). After a lack of recent braking emergencies, automakers stopped using the term and started referring it by its other use, the "parking brake", even though the ability to function at a high speed was still there. On an increasing number of modern vehicles, the parking brake can only be engaged when the vehicle is at a stop, and they no longer have an emergency brake.

The emergency brake in some cars is completely mechanical; that is, by pulling the lever, the driver pulls a cable, which in turn causes the brake shoes inside a drum brake to press against the cylinder. In a car with a completely mechanical emergency brake, the driver would be able to apply the brake even if there was a complete loss of hydraulic pressure and a stopped engine (which would mean that there would be no power braking).

https://en.wikipedia.org/wiki/Parking_brake

 

[UMRdyldo]

If your brakes fail, the best you can probably do is downshift to Sport or Low depending on your spend and start saying some prayers. If you believe in that sort of thing.

 

[fishycomics]

Why would you want it. Oh to Drift I get it seeing a Honda CRV drift.

While these new cars come out the Dealers Sales teams should Transition you over from an Old car to new car, ask you a few questions which they don't and here we are not knowing what we got. And that would sell you quicker in a heart Beat.
Then have you to figure out what you are missing and was there all along.

I use the E-Brake for Emergencies which I needed at one time. it only controls the Rear wheels, so I am not certain if the E-brake Locks all four as I did use that to change out a Shift knob hearing it engage. so to me it sounded like all four motors were moved.

FISH

 

[robrandon]

Thank you everyone. Very helpful.

Rob

 

[sirwired]

Why would you want it. Oh to Drift I get it seeing a Honda CRV drift.

While these new cars come out the Dealers Sales teams should Transition you over from an Old car to new car, ask you a few questions which they don't and here we are not knowing what we got. And that would sell you quicker in a heart Beat.
Then have you to figure out what you are missing and was there all along.

I use the E-Brake for Emergencies which I needed at one time. it only controls the Rear wheels, so I am not certain if the E-brake Locks all four as I did use that to change out a Shift knob hearing it engage. so to me it sounded like all four motors were moved.

FISH

The parking brake is rear-only (it uses motors bolted to the rear calipers), but if you hold the switch up while the car is in motion, the ABS pump will squeeze all four wheels to bring you to a stop, at which point the p-brake motors will engage.

 

[robbyg]

The parking brake is rear-only (it uses motors bolted to the rear calipers), but if you hold the switch up while the car is in motion, the ABS pump will squeeze all four wheels to bring you to a stop, at which point the p-brake motors will engage.

This is very interesting. So what happens if there is no hydraulic fluid to be pumped, will the E-Brake still engage and try to close the calipers? If not this is a bit worrying as the only choice left would be to go down to Low gear and pray for some up hill roads.


Rob

 

[sirwired]

This is very interesting. So what happens if there is no hydraulic fluid to be pumped, will the E-Brake still engage and try to close the calipers? If not this is a bit worrying as the only choice left would be to go down to Low gear and pray for some up hill roads.


Rob

Losing fluid in both halves of the system at once is unlikely.

 

[fishycomics]

The parking brake is rear-only (it uses motors bolted to the rear calipers), but if you hold the switch up while the car is in motion, the ABS pump will squeeze all four wheels to bring you to a stop, at which point the p-brake motors will engage.

that I know. thanks for reminding me.

 

[robbyg]

Losing fluid in both halves of the system at once is unlikely.

Ok but does anyone know what the E-Brake would do in that highly unlikely situation?

Rob

 

[fishycomics]

Pressure is lost and brakes go , how fast will you know very fast as soon as you tap that brake. the question is since the design was well thought out the Motors will put the Pressure on the break to stop the car. I HOPE!

 

[WolfpackBill]

The parking brake will bring the car to a stop.

https://youtu.be/fTVYitkSPXU

 

[kloker]

This is an interesting new technology "advance." Of course it would seem disconcerting to those of us who've spent a lifetime thinking that mechanical emergency brake was always there if needed. But I think it's a good idea. It much simplifies and reduces the mechanical component of the brake system, and I can't come up with a reason why it is not a better idea. Even for folks like me, who have a steeply sloped driveway to park on every day. I like it.

 

[captainbeandip]

The parking brake will bring the car to a stop.

https://youtu.be/fTVYitkSPXU

Are you saying that the parking brake will stop the car even if all of the brake fluid was gone? I believe this was the question.

Your youtube link just shows what happens when everything is working normally.

 

[sirwired]

Ok but does anyone know what the E-Brake would do in that highly unlikely situation?

Rob

It wouldn't do anything different. The working half of the system will stop the car, and then the p-brake will clamp down on the rears. I don't believe the p-brake requires hydraulic fluid; I think the motor directly compresses the piston. (Even if the p-brake required fluid, you'd still have one side clamped on.)

 

[C McDonald]

When you engage the p-brake you can hear the motors actuating and feel the brake pedal moving away from you as if you pressed on the brake pedal.

 

[sirwired]

Ok but does anyone know what the E-Brake would do in that highly unlikely situation?

Rob

It wouldn't do anything different. The working half of the system will stop the car, and then the p-brake will clamp down on the rears. I don't believe the p-brake requires hydraulic fluid; I think the motor directly compresses the piston. (Even if the p-brake required fluid, you'd still have one side clamped on.)

 

[Traylaw]

There are two electric gear motors p/n 43020-TLA-A00 mounted on each rear caliper which clamps the pads independent of the hydraulic pistons.

More accurately. it pushes in on the pistons but no hydraulic pressure is used.

 

[fishycomics]

the wire brake if not maintained will get Jammed that was the reasons why today its all motor will it stop you on a Dime Hell no but get you slowed down. best to avoid any obstruction of ever your brakes fail and know how to shut down, downshift and Brake, as well open the windows to create drag, you never know what stops the cars.