Paris-Lyon: ChatGPT suggests the speed to adopt in a Tesla Model Y

Is the artificial intelligence of ChatGTP capable of solving the speed dilemma on a Paris-Lyon trip in a Tesla Model Y?

To determine the ideal average speed of a Tesla Model Y Propulsion on the highway to achieve the shortest travel time between Paris and Lyon, we need to consider several factors: energy consumption at different speeds, charging time, and the vehicle’s range. Here is a methodical approach to calculate this:

1. Energy consumption at different speeds

Electric cars, including the Tesla Model Y, consume more energy at higher speeds. For example:

• At 90 km/h, the consumption can be around 14 kWh/100 km.
• At 120 km/h, the consumption can increase to about 20 kWh/100 km.
• At 130 km/h, the consumption can reach about 22 kWh/100 km.

2. Range of the Tesla Model Y Propulsion

The Tesla Model Y Propulsion has a usable battery of about 75 kWh. The range varies depending on consumption:

• At 90 km/h, the range would be about 535 km.
• At 120 km/h, the range would be about 375 km.
• At 130 km/h, the range would be about 340 km.

3. Charging time

The charging time depends on the power of the charger. Tesla Superchargers can provide up to 250 kW, but the average charging speed decreases as the battery fills up:

• From 10% to 80% in about 20-25 minutes (fast charging).
• From 80% to 100% in about 30-40 minutes (slower charging).

4. Distance and route

The distance between Paris and Lyon is about 465 km.

5. Trip time calculation

For each speed, we need to consider the driving time and the charging time necessary to cover the distance of 465 km.

At 90 km/h:

• Driving time: 465 km/90 km/h = 5.17 hours
• Consumption: 65.1 kWh (less than one charge required).
• Charging time: 0 minutes (with a full charge at departure).

At 120 km/h:

• Driving time: 465 km/120 km/h = 3.88 hours
• Consumption: 93 kWh (one charge required).
• Charging time: 25 minutes.

At 130 km/h:

• Driving time: 465 km/130 km/h = 3.58 hours
• Consumption: 102.3 kWh (one charge required).
• Charging time: 25 minutes.

Conclusion

To find the total travel time that is the shortest, we need to add the driving time and the charging time. Here are the total times for each speed:

• At 90 km/h: 5.17 hours (5 hours 10 minutes).
• At 120 km/h: 3.88 hours + 0.42 hours (25 minutes) = 4.3 hours (4 hours 18 minutes).
• At 130 km/h: 3.58 hours + 0.42 hours (25 minutes) = 4.0 hours (4 hours).

A speed of 130 km/h seems to be the ideal speed to achieve the shortest travel time between Paris and Lyon, considering a quick charging stop. However, it is important to note that higher speeds increase energy consumption and may lead to additional costs as well as faster wear on the vehicle’s components.

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