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>>**LYN Perodua MYVI Owners Club v24°°<<, The New Myvi 1.3 SE (S-Series)
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F-22
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 Nov 10 2012, 07:18 PM
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New Member
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it has been long time i observed about these things, but not just happen to me but to other myvi i've tested, so today i wrote and email to perodua..i paste a copy in here:
ELECTRIC POWER STEERING
FEEDBACK REGARDING EPS ASSIST WHICH AFFECT EPS RESPONSE TIME ADAPTING TO VEHICLE SPEED
SITUATION:
QUICK ACCELERATION FROM STANDSTILL WHEN THE EPS ASSIST IS HIGH TO HIGH SPEED 100KMH++. EPS ASSIST STILL HIGH FOR 15 SECONDS. AFTER 15 SECONDS PASSED THEN IT SETTLED TO THE LOW ASSIST.
SAME FOR QUICK DECELERATION TO BELOW 40KMH FROM HIGH SPEED. LOW ASSIST FOR FIRST 15 SECONDS, THEN IT SETTLED FOR HIGH ASSIST.
EPS ASSIST ONLY HAVE THREE MODE 1. HIGH(BELOW 40KMH) 2. MED(BELOW 60KMH) 3. LOW(ABOVE 60KMH)
EXPECTED:
EPS ASSIST SHOULD ADAPT TO VEHICLE SPEED IN REAL TIME.
ASSIST MODE SHOULD VARY CONTINUOUSLY.
SOLUTION:
ENGINEERING DEPT SHOULD DO TEST TO CONFIRM AND REQUIRE EPS ECU TO BE UPDATED.
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F-22
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Nov 10 2012, 07:33 PM
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New Member
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QUOTE(MR_alien @ Nov 10 2012, 07:26 PM) so this is why one of the member said he test drive the myvi...the steering was super hard when U-turn delay....15 second is major delay yes that's why he experienced hard to turn the steering when quick deceleration from high speed. i did feel it too. the same thing when accelerating from standstill, try wiggle the steering left right. it feel like toy car, then it stiffen. |
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F-22
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Nov 10 2012, 09:56 PM
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New Member
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QUOTE(zangun @ Nov 10 2012, 09:51 PM) yes, i've experienced this too..is it a defect? its not a hardware defect. it can be fixed by updating firmware in EPS control unit. only perodua can access it. even preve had been recalled by proton to update its firmware in the TCU which result smooth gear changing afterward. |
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F-22
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Nov 11 2012, 08:13 PM
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New Member
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i take 15 seconds as a worst case scenario, so that they, perodua can check within that time window to verify the claim. but still 6-7 second is long delay. a plague to all of us using EPS.
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F-22
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Nov 12 2012, 11:26 PM
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New Member
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QUOTE(colinwong89 @ Nov 12 2012, 12:11 PM) I've reported this to Perodua as well a few months back, but again the staff assumed it was just another same old issue. To me I feel it is absolutely dangerous when you cannot predict the stiffness of the steering wheel. As for hydraulic steering assist, the assist is consistent and the same for all different speeds but for our EPS it varies due to the delay of response. I've swerved my car a few times due to the delay. Worst of all, the EPS lags when you need it most - especially during rapid acceleration and quick shifting of lanes. Let us know any development if you get any. Will be willing to vouch for you if they claim anyone else does not face this problem  they havent contact me yet..but let us get as many people to write email to them.. and report to hal ehwal pengguna minstry..so that this will escalate to big issue |
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