Predictika · Commercial truck tires

An AI sales agent's truck tire order, checked before it goes out

An AI sales agent prepares a tire order for a trucking fleet: a line haul tire for a steer, drive or trailer axle, with the wheel width, single or dual fitment, dual spacing, inflation pressure, operating speed, the load on the axle, and the axle capacity and tire count it states. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the figures in the public Michelin Truck Tire Data Book and returns a verdict, every reason and the figures it computed.

Scope: Michelin X LINE ENERGY Z, D, D+, T 19.5 and T2 and X ONE LINE ENERGY D, D2 and T2 tires: wheel position, approved wheels, speed, dual spacing, inflation pressure and load per axle. See everything this validator covers

This validator models orders for the 20 size and load range rows of the Michelin line haul tires named here, based on the public Michelin Truck Tire Data Book (21st edition), not just the scenarios shown below.

  • Published rows — X LINE ENERGY Z (11R22.5 LRG and LRH, 11R24.5 LRH, 275/80R22.5 LRG and LRH, 275/80R24.5 LRH, 295/60R22.5 and the 315/80R22.5 Coach), X LINE ENERGY D (11R22.5, 275/80R22.5, 275/80R24.5), D+ (275/80R22.5), T 19.5 (265/70R19.5), T2 (11R22.5, 11R24.5, 285/75R24.5, 295/75R22.5) and the wide single X ONE LINE ENERGY D, D2 and T2 (445/50R22.5). Each row gives its wheel position, maximum speed, approved wheels, minimum dual spacing and maximum load and pressure.
  • Position, wheel and speed — drive tires only in drive positions, trailer tires only in trailer positions, Z tires in any position; the wheel width must be on the tire's approved list; the speed must not exceed the tire's maximum (62 mph for the T 19.5, 75 mph for the others); wide single tires have no dual rating.
  • Pressure and load — the inflation pressure must be one the data book's load and inflation chart lists for that tire and fitment, not above its maximum and not above the wheel manufacturer's rating; the axle load must not exceed the chart's load per axle at that pressure (two tires for single, four for dual); an order that does not state the wheel rating goes to a person.
  • Spacing and stated figures — dual spacing must be at least the tire's minimum, adjusted by a tenth of an inch for each quarter inch the wheel differs from the measuring wheel, as the data book's footnote directs; the axle capacity and the tire count the order states must equal the computed ones; the 295/60R22.5 on a 9.00 wheel goes to a person because the data book refers to its Appendix.

Any order for these tires that touches these rules is in scope — not only the scenarios pictured here. Not covered: prices (the data book lists none, so this page shows no price build-up or line-item quote), other Michelin tire lines and sizes, retreads, other pressures than those printed in the chart, mixed tire sizes on one axle, and the wheel manufacturer's own limits beyond the rating the order states.

The AI sales agentBuilds the tire order from the conversation and says it is ready.
Predictika validatorChecks every rule at once and returns the verdict, each finding, and the computed figures.

7 scenarios in 3 groups · each group runs from the agent’s first attempt to the outcome · click one to switch

What the agent proposes

The AI sales agent says

Illustrative agent statement. The validator receives the structured request below.

Proposing agent: AI sales agent (scripted)

Before sending, the agent must call Recorded run

Predictika validator


      

        
        
        
      

      
Waiting for the call.

      
    

  

  
  

    
Where rules-based CPQ gets it wrong
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Our assessment of what a typical rules-based CPQ (product rules, price rules and validation rules, as in Salesforce CPQ) does with the same cases. It is a judgment about effort and reliability, not a claim that nothing can be built.

    
What the validator caughtTypical rules-based CPQPredictika
Tire, position, wheel and speed limits for 20 published rowsOnly with workarounds
Each tire row has its own position, approved wheels and maximum speed. A rules-based CPQ needs a compatibility table or one rule per row, and a new data book edition means editing all of them.		The tire row, the position, the wheel and the speed arrive in one request and are checked against the published row on every call.
Axle load against the pressure chartOnly with workarounds
The load a tire carries depends on the size group, single or dual, and the pressure, and the chart lists a different load at every pressure step. That is a lookup table per group, and a pressure the chart does not list needs its own rule.		The chart is part of the model; the load at the stated pressure is looked up, compared with the axle load, and an unlisted pressure is its own finding.
Minimum dual spacing adjusted for the wheel widthOnly with care
The minimum is printed for one measuring wheel and shifts with the wheel width, so a rule has to know each row's measuring wheel and recompute.		The adjusted minimum is computed for the selected wheel on every call.
Axle capacity and tire count the order statesOnly with care
The stated figures are derived from the tire, the fitment, the pressure and the axles, so a rule has to recompute them and compare.		The stated figures are fields in the request, compared with the computed ones on every call.
Every problem returned in one answerOnly with workarounds
Rules tend to fire as the order is saved or a step is completed, so a person often fixes one error and meets the next.		All findings come back together, whatever order the choices arrived in.

  

  

    
What this validator catches: findings from its test cases
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Every rule is checked on every call, in any order the choices arrive; one problem never hides another. Blocking findings stop the quote; approval findings need a person to sign off; everything else is computed.

    
1The data book lists this tire in its drive positions only; it is not listed for steer or trailer positions.
2The data book lists this tire in its trailer positions only; it is not listed for steer or drive positions.
3A wheel width of 900 hundredths of an inch is not on the approved wheel list for this tire.
4The duals are spaced 12.1 inches apart; the minimum for this tire on this wheel is 12.2 inches.
5The duals are spaced 12.4 inches apart; the minimum for this tire on this wheel is 12.5 inches.
6This is a wide single tire; the data book gives it a single load and pressure only and no dual rating.
7The operating speed of 76 mph is above the tire maximum of 75 mph.
8The operating speed of 63 mph is above the tire maximum of 62 mph.
9An inflation pressure of 110 psi is above the maximum of 105 psi for this tire in this fitment.
10The data book load and inflation table gives no load for this tire at 102 psi.
11The axle load of 22,600 lbs is above the 22,500 lbs the data book table gives for this tire at 100 psi.
12The inflation pressure of 105 psi is above the wheel manufacturer rating of 100 psi; the data book says the pressure must not exceed the wheel manufacturer maximum.
13The order does not state the wheel manufacturer rating; the data book says load and pressure must not exceed the wheel manufacturer maximum, so a person should confirm the wheels.
14The data book refers to its Appendix page xi for proper usage of the 295/60R22.5 size; a person should review it for this fitment.
15The order states an axle capacity of 22,500 lbs; the data book table gives 23,360 lbs at this pressure.
16The order states 4 tires in total; the axles and fitment give 8.
17The order has 0 axles; at least 1 is needed.
18A wheel width of 825 hundredths of an inch is not on the approved wheel list for this tire.
19The duals are spaced 13.4 inches apart; the minimum for this tire on this wheel is 13.5 inches.
20The operating speed of 70 mph is above the tire maximum of 62 mph.

  

  

    
Scenarios and results
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The recorded result of the validator for each scenario on this page: the request the AI agent sent, the verdict, and every finding, in the order they appear above.

    
1. Tri-axle trailer: Three trailer axles on X LINE ENERGY T 19.5

    
The agent's request. Please quote Michelin X LINE ENERGY T 19.5 265/70R19.5 LRH tires for three trailer axles, dual fitment, on 7.50-inch wheels, inflated to 120 psi, for an axle load of 22,300 lbs at 65 mph, with the duals spaced 11.5 inches apart. The order states an axle capacity of 22,500 lbs and 12 tires in total. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Speed above the tire maximum. The operating speed of 65 mph is above the tire maximum of 62 mph.
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  • Axle load above the table. The axle load of 22,300 lbs is above the 21,940 lbs the data book table gives for this tire at 120 psi.
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  • Dual spacing too tight. The duals are spaced 11.5 inches apart; the minimum for this tire on this wheel is 11.8 inches.
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  • Stated axle capacity does not match. The order states an axle capacity of 22,500 lbs; the data book table gives 21,940 lbs at this pressure.
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  • Wheel rating not stated. The order does not state the wheel manufacturer rating; the data book says load and pressure must not exceed the wheel manufacturer maximum, so a person should confirm the wheels.
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2. Tri-axle trailer: The agent resubmits after fixing the errors

    
The agent's request. Please quote Michelin X LINE ENERGY T 19.5 265/70R19.5 LRH tires for three trailer axles, dual fitment, on 7.50-inch wheels, inflated to 120 psi, for an axle load of 21,500 lbs at 62 mph, with the duals spaced 11.8 inches apart. The order states an axle capacity of 21,940 lbs and 12 tires in total. It is ready to send.

    
Verdict: Needs approval.

    
    
      
  • Wheel rating not stated. The order does not state the wheel manufacturer rating; the data book says load and pressure must not exceed the wheel manufacturer maximum, so a person should confirm the wheels.
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  • Order summary. 12 tires on 3 axles at 120 psi; the data book table gives 21,940 lbs per axle against 21,500 lbs needed.
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3. Tri-axle trailer: The agent resubmits after fixing the errors

    
The agent's request. Please quote Michelin X LINE ENERGY T 19.5 265/70R19.5 LRH tires for three trailer axles, dual fitment, on 7.50-inch wheels, inflated to 120 psi, for an axle load of 21,500 lbs at 62 mph, with the duals spaced 11.8 inches apart. The wheels are rated to 130 psi. The order states an axle capacity of 21,940 lbs and 12 tires in total. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Order summary. 12 tires on 3 axles at 120 psi; the data book table gives 21,940 lbs per axle against 21,500 lbs needed.
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4. Steer axle tire: X LINE ENERGY D 275/80R22.5 quoted for a steer axle

    
The agent's request. Please quote Michelin X LINE ENERGY D 275/80R22.5 LRG tires for one steer axle, single fitment, on 8.25-inch wheels, inflated to 110 psi, for an axle load of 11,800 lbs at 65 mph. The wheels are rated to 130 psi. The order states an axle capacity of 12,350 lbs and 2 tires in total. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Drive tire in another position. The data book lists this tire in its drive positions only; it is not listed for steer or trailer positions.
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5. Steer axle tire: The agent resubmits after fixing the errors

    
The agent's request. Please quote Michelin X LINE ENERGY Z 275/80R22.5 LRG tires for one steer axle, single fitment, on 8.25-inch wheels, inflated to 110 psi, for an axle load of 11,800 lbs at 65 mph. The wheels are rated to 130 psi. The order states an axle capacity of 12,350 lbs and 2 tires in total. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Order summary. 2 tires on 1 axle at 110 psi; the data book table gives 12,350 lbs per axle against 11,800 lbs needed.
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6. Tandem drive axles: Two drive axles on X LINE ENERGY D at 115 psi

    
The agent's request. Please quote Michelin X LINE ENERGY D 275/80R22.5 LRG tires for two drive axles, dual fitment, on 8.25-inch wheels, inflated to 115 psi, for an axle load of 22,000 lbs at 65 mph, with the duals spaced 12.2 inches apart. The wheels are rated to 130 psi. The order states 8 tires in total. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Pressure above the tire maximum. An inflation pressure of 115 psi is above the maximum of 110 psi for this tire in this fitment.
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7. Tandem drive axles: The agent resubmits after fixing the errors

    
The agent's request. Please quote Michelin X LINE ENERGY D 275/80R22.5 LRG tires for two drive axles, dual fitment, on 8.25-inch wheels, inflated to 110 psi, for an axle load of 22,000 lbs at 65 mph, with the duals spaced 12.2 inches apart. The wheels are rated to 130 psi. The order states an axle capacity of 22,700 lbs and 8 tires in total. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Order summary. 8 tires on 2 axles at 110 psi; the data book table gives 22,700 lbs per axle against 22,000 lbs needed.
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Narration transcript
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The text of the narrated walkthrough, step by step.

    
    
      
  1. Welcome to a demo of Predictika's Validator. An AI sales agent prepares a tire order for a trucking fleet: a line haul tire for a steer, drive or trailer axle. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the figures in the public Michelin Truck Tire Data Book and returns a verdict, every reason and the figures it computed.
    2. 
      
  2. I will start with the first request by the agent.
    3. 
      
  3. The agent says. Please quote Michelin X LINE ENERGY T 19.5 265/70R19.5 LRH tires for three trailer axles, dual fitment, on 7.50-inch wheels. The order states an axle capacity of 22,500 lbs and 12 tires in total. The rest of the request is on screen.
    4. 
      
  4. Before it goes out, the agent calls the validator.
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  5. Blocked, with four findings and one approval, all in one answer. The operating speed of 65 mph is above the tire maximum of 62 mph. The axle load of 22,300 lbs is above the 21,940 lbs the data book table gives for this tire at 120 psi. The duals are spaced 11.5 inches apart; the minimum for this tire on this wheel is 11.8 inches. The other one is on screen.
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  6. The validator returned four blocking findings and one approval in one answer. A check that reads one field at a time would pass most of this; it shows only when the choices in the quote are checked against each other.
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  7. What this shows: for tire, position, wheel and speed limits for 20 published rows, a rules-based CPQ can do this only with workarounds.
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  8. Now the agent resubmits.
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  9. The corrected request. It changes the axle load needed to 21,500 lbs, the operating speed to 62 mph, the dual spacing to 11.8 inches and the stated axle capacity as to 21,940 lbs.
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  10. It calls the validator again.
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  11. Not blocked, but held for a person.
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  12. The four blocking findings are cleared; one approval remains for a person: wheel rating not stated.
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  13. The agent resubmits once more.
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  14. The revised request. It changes the wheel manufacturer rating to 130 psi.
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  15. It calls the validator once more.
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  16. This time the validator clears it.
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  17. The earlier finding is cleared, and the validator's figure matches the quote.
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  18. Five problems caught in one call, fixed in two passes, and a clean quote. That is the value of Predictika's validator: catching mistakes before they reach the customer.
    19.