Engine Knocking Noise problems of the 2008 Honda CR-V

While driving from my home I got to a toll booth and after paying the toll placed my foot on the accelerator and the car simply revved as if it was in neutral with rpms varying indiscriminately. Suddenly the car jerked forward with a loud bang and moved normally I pulled to the shoulder and checked fluids and for signs of any problems. We received no dashboard warning lights. We continued our trip but the car would not shift between 3rd and 4th gear and we couldn't maintain speed. Suddenly the incident at the toll both repeated itself. I shut the car down although temperature was ok as was oil pressure. After a short wait we resumed driving and the car performed normally for about 50 miles and then it was back to no shift or long duration before shift and then a banging noise. We got to our destination and car was parked for about 3 hours. After starting the car and placing it in drive I had a hard shift between 1st and 2nd gear I was making a left hand turn and the failure to accelerate put us in danger of a rear impact collision. I called Honda but it was not something they would even talk about over the phone. We continued on our return trip and wre cruising at the 70 mph limit in the middle lane on I 75 in florida when suddenly the transmission dropped out of gear going into a neutral mode the engine rpms were moving all over the place. I was slowing down and attempting to get to the shoulder. After getting to the shoulder I cycled through all the transmission positions and could achieve 3rd gear but it would go in and out of 4th gear. When these conditions occurred I did not feel I was in control of the vehicle nor safe. I have never had a problem with this vehicle before however I am being told that it is a problem on multiple models of Hondas. I am a trained, certified, accident ,engineer reconstructionist ( mostly large vehicles and urban buses ).