RX8 Rack-and-pinion steering
RX8 Rack-and-pinion steering
02-25-2005, 09:04 AM
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Originally Posted by salituro64
Does anyone know exactly what this means...
Rack-and-pinion steering with electric variable assist
Rack-and-pinion steering with electric variable assist
02-25-2005, 10:11 AM
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Thanks, after posting I found it on the Mazda web site...
Electronic Power-Steering Pump - The Mazda RX-8's electric power-steering pump delivers precisely the right amount of assist to match driving conditions. One additional benefit of an electric power-steering pump is improved fuel economy, as electrically driven steering, as opposed to the typical belt-driven system, does not drain power from the engine.
Electronic Power-Steering Pump - The Mazda RX-8's electric power-steering pump delivers precisely the right amount of assist to match driving conditions. One additional benefit of an electric power-steering pump is improved fuel economy, as electrically driven steering, as opposed to the typical belt-driven system, does not drain power from the engine.
02-28-2005, 01:14 PM
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Originally Posted by salituro64
Thanks, after posting I found it on the Mazda web site...
Electronic Power-Steering Pump - The Mazda RX-8's electric power-steering pump delivers precisely the right amount of assist to match driving conditions. One additional benefit of an electric power-steering pump is improved fuel economy, as electrically driven steering, as opposed to the typical belt-driven system, does not drain power from the engine.
Electronic Power-Steering Pump - The Mazda RX-8's electric power-steering pump delivers precisely the right amount of assist to match driving conditions. One additional benefit of an electric power-steering pump is improved fuel economy, as electrically driven steering, as opposed to the typical belt-driven system, does not drain power from the engine.
03-01-2005, 02:47 PM
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Funny....
Without pics it is hard to explain, but the steering rack is encapsuled by the permanent magnets of an electric motor, with the armature spinning around the rack inside these permanent magnets. Connected to the armature is a ball-nut, which meshes with the rack teeth. When the armature rotates, so does the ball-nut, thus pulling the rack. Reverse the rotation of the motor and you have assist in the opposite direction.
There is a torque sensor attached to the steering shaft (at the rack) which detects how much torque is being applied to the shaft, and of course the vehicle speed is being picked up via the CAN communication system. When you have more torque you have more assist (higher current to the motor), when you have higher vehicle speed the assist is reduced.
Just in case you were interested - I hope I didn't lose you...
Cheers.
Without pics it is hard to explain, but the steering rack is encapsuled by the permanent magnets of an electric motor, with the armature spinning around the rack inside these permanent magnets. Connected to the armature is a ball-nut, which meshes with the rack teeth. When the armature rotates, so does the ball-nut, thus pulling the rack. Reverse the rotation of the motor and you have assist in the opposite direction.
There is a torque sensor attached to the steering shaft (at the rack) which detects how much torque is being applied to the shaft, and of course the vehicle speed is being picked up via the CAN communication system. When you have more torque you have more assist (higher current to the motor), when you have higher vehicle speed the assist is reduced.
Just in case you were interested - I hope I didn't lose you...
Cheers.
03-02-2005, 06:57 AM
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Originally Posted by Mr M
Funny....
Without pics it is hard to explain, but the steering rack is encapsuled by the permanent magnets of an electric motor, with the armature spinning around the rack inside these permanent magnets. Connected to the armature is a ball-nut, which meshes with the rack teeth. When the armature rotates, so does the ball-nut, thus pulling the rack. Reverse the rotation of the motor and you have assist in the opposite direction.
There is a torque sensor attached to the steering shaft (at the rack) which detects how much torque is being applied to the shaft, and of course the vehicle speed is being picked up via the CAN communication system. When you have more torque you have more assist (higher current to the motor), when you have higher vehicle speed the assist is reduced.
Just in case you were interested - I hope I didn't lose you...
Cheers.
Without pics it is hard to explain, but the steering rack is encapsuled by the permanent magnets of an electric motor, with the armature spinning around the rack inside these permanent magnets. Connected to the armature is a ball-nut, which meshes with the rack teeth. When the armature rotates, so does the ball-nut, thus pulling the rack. Reverse the rotation of the motor and you have assist in the opposite direction.
There is a torque sensor attached to the steering shaft (at the rack) which detects how much torque is being applied to the shaft, and of course the vehicle speed is being picked up via the CAN communication system. When you have more torque you have more assist (higher current to the motor), when you have higher vehicle speed the assist is reduced.
Just in case you were interested - I hope I didn't lose you...
Cheers.
03-02-2005, 07:15 AM
#9
He's as bad as Can
This pic might help. It's a RHD set-up but if you follow the linkage from the steering wheel it should make sense
Last edited by expo1; 09-06-2008 at 04:35 PM.
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