Estimates of acceleration rates in different gears at maximum power and at continuous rated power.

The first set of data is based on maximum power output.  The actual transmission is not rated to take the full torque of the motor.

Blue on the left is an input, red on the right is the output, orange in the middle requires some sort of logic to be applied.

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3200	lb	best current guess
288	V	Nissan Leaf pack
394	V	Nissan Leaf pack
300	Nm	from chart in previous post (MUST limit to prevent transmission failure)
221	ft-lb	unit conversion
160	Nm	from chart
118	ft-lb	unit conversion
3000	rpm	from chart in previous post
6500	rpm	limited to redline on dashboard
126	hp
67	hp
94	kW	unit conversion
50	kW	unit conversion
327	A
128	A
4.24
3.78	1st	16.03
2.12	2nd	8.99
1.36	3rd	5.77
1.03	4th	4.37
0.84	5th	3.56
25.1	in	Yokohama Avid Ascend 195/65 R15 BlueEarth
78.85	in
804	827	Yokohama says 827 accounting or deformation
12.19	in	Back calculated from rev/mile Yokohama spec.

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			Torque	HP	Limiting force
		1st	1st	1st	1st
motor	find power max	ground speed	ground force lb	ground force lb	actual
rev/min	94 kW	mph	lb	lb	lb	sec
0	0	0.0	3490	-	3490	0.0
500	16	2.3	3490	20940	3490	0.1
1000	31	4.5	3490	10470	3490	0.2
1500	47	6.8	3490	6980	3490	0.3
2000	63	9.1	3490	5235	3490	0.4
2500	79	11.3	3490	4188	3490	0.5
3000	94	13.6	3490	3490	3490	0.6
3500	110	15.8	3490	2991	2991	0.7
4000	126	18.1	3490	2618	2618	0.8
4500	141	20.4	3490	2327	2327	0.9
5000	157	22.6	3490	2094	2094	1.1
5500	173	24.9	3490	1904	1904	1.3
6000	188	27.2	3490	1745	1745	1.5
6500	204	29.4	3490	1611	1611	1.7

The graph below looks like we could have a lot of fun from 0-30mph if the transmission holds :)



The data has been run based on continuous ratings, not peak capability.


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Weight	3200	lb	best current guess
Voltage min.	288	V	Nissan Leaf pack
Voltage max.	394	V	Nissan Leaf pack
Torque max. 30sec	160	Nm	from chart (MUST limit to prevent transmission failure)
Torque max. 30sec	118	ft-lb	unit conversion
Torque continuous max.	160	Nm	from chart
Torque continuous max.	118	ft-lb	unit conversion
Motor knee speed	3000	rpm	from chart
Motor max. speed	6500	rpm	from chart
HP max.	67	hp
HP continuous max.	67	hp
Power max.	50	kW	unit conversion
Power continuous max.	50	kW	unit conversion
Amps max.	175	A
Amps continuous max.	128	A
Diferential	4.24
Gear ratio	3.78	1st	16.03
Gear ratio	2.12	2nd	8.99
Gear ratio	1.36	3rd	5.77
Gear ratio	1.03	4th	4.37
Gear ratio	0.84	5th	3.56
Tire diameter	25.1	in	Yokohama Avid Ascend 195/65 R15 BlueEarth
Tire circumference	78.85	in
Tire rev/mile	804	827	Yokohama says 827 accounting or deformatio
Tire radius	12.19	in	Back calculated from rev/mile Yokohama spec.

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			Torque	HP	Limiting force
	find power max	1st	1st	1st	1st
motor		ground speed	ground force lb	ground force lb	actual
rev/min	50	mph	lb	lb	lb	sec
0	0	0.0	1861	-	1861	0.0
500	8	2.3	1861	11168	1861	0.2
1000	17	4.5	1861	5584	1861	0.4
1500	25	6.8	1861	3723	1861	0.5
2000	34	9.1	1861	2792	1861	0.7
2500	42	11.3	1861	2234	1861	0.9
3000	50	13.6	1861	1861	1861	1.1
3500	59	15.8	1861	1595	1595	1.3
4000	67	18.1	1861	1396	1396	1.5
4500	75	20.4	1861	1241	1241	1.8
5000	84	22.6	1861	1117	1117	2.1
5500	92	24.9	1861	1015	1015	2.4
6000	101	27.2	1861	931	931	2.7
6500	109	29.4	1861	859	859	3.1

Even at continuous level power ratings 0-30 in 1st can be fun. What we infer from this data is that it can be left in 3rd gear all the time, or it can be placed in 2nd but if limited to 6500 rpm it will not be highway speed capable in 2nd. 



Yet to figure out:

• Is it better to run second gear and not limit to 6500 rpm?
• Is it better to run second gear in the city and change to 3rd for highway?
• Is 3rd better all around as churning in the transmission will be less?
• How much more efficient is running in 2nd at a lower amp draw than 3rd with a heavier foot?